21108696

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 67392000

約数和(自身を除く): 46283304

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 19, 21, 24, 28, 34, 38, 42, 51, 56, 57, 68, 76, 84, 102, 114, 119, 133, 136, 152, 168, 204, 228, 238, 266, 323, 357, 389, 399, 408, 456, 476, 532, 646, 714, 778, 798, 952, 969, 1064, 1167, 1292, 1428, 1556, 1596, 1938, 2261, 2334, 2584, 2723, 2856, 3112, 3192, 3876, 4522, 4668, 5446, 6613, 6783, 7391, 7752, 8169, 9044, 9336, 10892, 13226, 13566, 14782, 16338, 18088, 19839, 21784, 22173, 26452, 27132, 29564, 32676, 39678, 44346, 46291, 51737, 52904, 54264, 59128, 65352, 79356, 88692, 92582, 103474, 125647, 138873, 155211, 158712, 177384, 185164, 206948, 251294, 277746, 310422, 370328, 376941, 413896, 502588, 555492, 620844, 753882, 879529, 1005176, 1110984, 1241688, 1507764, 1759058, 2638587, 3015528, 3518116, 5277174, 7036232, 10554348, 21108696]

約数ペア:

[(1, 21108696), (2, 10554348), (3, 7036232), (4, 5277174), (6, 3518116), (7, 3015528), (8, 2638587), (12, 1759058), (14, 1507764), (17, 1241688), (19, 1110984), (21, 1005176), (24, 879529), (28, 753882), (34, 620844), (38, 555492), (42, 502588), (51, 413896), (56, 376941), (57, 370328), (68, 310422), (76, 277746), (84, 251294), (102, 206948), (114, 185164), (119, 177384), (133, 158712), (136, 155211), (152, 138873), (168, 125647), (204, 103474), (228, 92582), (238, 88692), (266, 79356), (323, 65352), (357, 59128), (389, 54264), (399, 52904), (408, 51737), (456, 46291), (476, 44346), (532, 39678), (646, 32676), (714, 29564), (778, 27132), (798, 26452), (952, 22173), (969, 21784), (1064, 19839), (1167, 18088), (1292, 16338), (1428, 14782), (1556, 13566), (1596, 13226), (1938, 10892), (2261, 9336), (2334, 9044), (2584, 8169), (2723, 7752), (2856, 7391), (3112, 6783), (3192, 6613), (3876, 5446), (4522, 4668)]