21096796

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 27674276

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 41, 46, 47, 68, 82, 92, 94, 119, 161, 164, 188, 238, 287, 322, 329, 391, 476, 574, 644, 658, 697, 782, 799, 943, 1081, 1148, 1316, 1394, 1564, 1598, 1886, 1927, 2162, 2737, 2788, 3196, 3772, 3854, 4324, 4879, 5474, 5593, 6601, 7567, 7708, 9758, 10948, 11186, 13202, 13489, 15134, 16031, 18377, 19516, 22372, 26404, 26978, 30268, 32062, 32759, 36754, 44321, 53956, 64124, 65518, 73508, 88642, 112217, 128639, 131036, 177284, 224434, 229313, 257278, 310247, 448868, 458626, 514556, 620494, 753457, 917252, 1240988, 1506914, 3013828, 5274199, 10548398, 21096796]

約数ペア:

[(1, 21096796), (2, 10548398), (4, 5274199), (7, 3013828), (14, 1506914), (17, 1240988), (23, 917252), (28, 753457), (34, 620494), (41, 514556), (46, 458626), (47, 448868), (68, 310247), (82, 257278), (92, 229313), (94, 224434), (119, 177284), (161, 131036), (164, 128639), (188, 112217), (238, 88642), (287, 73508), (322, 65518), (329, 64124), (391, 53956), (476, 44321), (574, 36754), (644, 32759), (658, 32062), (697, 30268), (782, 26978), (799, 26404), (943, 22372), (1081, 19516), (1148, 18377), (1316, 16031), (1394, 15134), (1564, 13489), (1598, 13202), (1886, 11186), (1927, 10948), (2162, 9758), (2737, 7708), (2788, 7567), (3196, 6601), (3772, 5593), (3854, 5474), (4324, 4879)]