21508715928

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{175141}}^1$

素因数の和:175217

約数の個数: 128

約数和(自身を含む): 66581982720

約数和(自身を除く): 45073266792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 43, 51, 56, 68, 84, 86, 102, 119, 129, 136, 168, 172, 204, 238, 258, 301, 344, 357, 408, 476, 516, 602, 714, 731, 903, 952, 1032, 1204, 1428, 1462, 1806, 2193, 2408, 2856, 2924, 3612, 4386, 5117, 5848, 7224, 8772, 10234, 15351, 17544, 20468, 30702, 40936, 61404, 122808, 175141, 350282, 525423, 700564, 1050846, 1225987, 1401128, 2101692, 2451974, 2977397, 3677961, 4203384, 4903948, 5954794, 7355922, 7531063, 8932191, 9807896, 11909588, 14711844, 15062126, 17864382, 20841779, 22593189, 23819176, 29423688, 30124252, 35728764, 41683558, 45186378, 52717441, 60248504, 62525337, 71457528, 83367116, 90372756, 105434882, 125050674, 128028071, 158152323, 166734232, 180745512, 210869764, 250101348, 256056142, 316304646, 384084213, 421739528, 500202696, 512112284, 632609292, 768168426, 896196497, 1024224568, 1265218584, 1536336852, 1792392994, 2688589491, 3072673704, 3584785988, 5377178982, 7169571976, 10754357964, 21508715928]

約数ペア:

[(1, 21508715928), (2, 10754357964), (3, 7169571976), (4, 5377178982), (6, 3584785988), (7, 3072673704), (8, 2688589491), (12, 1792392994), (14, 1536336852), (17, 1265218584), (21, 1024224568), (24, 896196497), (28, 768168426), (34, 632609292), (42, 512112284), (43, 500202696), (51, 421739528), (56, 384084213), (68, 316304646), (84, 256056142), (86, 250101348), (102, 210869764), (119, 180745512), (129, 166734232), (136, 158152323), (168, 128028071), (172, 125050674), (204, 105434882), (238, 90372756), (258, 83367116), (301, 71457528), (344, 62525337), (357, 60248504), (408, 52717441), (476, 45186378), (516, 41683558), (602, 35728764), (714, 30124252), (731, 29423688), (903, 23819176), (952, 22593189), (1032, 20841779), (1204, 17864382), (1428, 15062126), (1462, 14711844), (1806, 11909588), (2193, 9807896), (2408, 8932191), (2856, 7531063), (2924, 7355922), (3612, 5954794), (4386, 4903948), (5117, 4203384), (5848, 3677961), (7224, 2977397), (8772, 2451974), (10234, 2101692), (15351, 1401128), (17544, 1225987), (20468, 1050846), (30702, 700564), (40936, 525423), (61404, 350282), (122808, 175141)]