21549836

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 50663424

約数和(自身を除く): 29113588

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 37, 44, 61, 62, 74, 77, 122, 124, 148, 154, 217, 244, 259, 308, 341, 407, 427, 434, 518, 671, 682, 814, 854, 868, 1036, 1147, 1342, 1364, 1628, 1708, 1891, 2257, 2294, 2387, 2684, 2849, 3782, 4514, 4588, 4697, 4774, 5698, 7564, 8029, 9028, 9394, 9548, 11396, 12617, 13237, 15799, 16058, 18788, 20801, 24827, 25234, 26474, 31598, 32116, 41602, 49654, 50468, 52948, 63196, 69967, 83204, 88319, 99308, 139934, 145607, 173789, 176638, 279868, 291214, 347578, 353276, 489769, 582428, 695156, 769637, 979538, 1539274, 1959076, 3078548, 5387459, 10774918, 21549836]

約数ペア:

[(1, 21549836), (2, 10774918), (4, 5387459), (7, 3078548), (11, 1959076), (14, 1539274), (22, 979538), (28, 769637), (31, 695156), (37, 582428), (44, 489769), (61, 353276), (62, 347578), (74, 291214), (77, 279868), (122, 176638), (124, 173789), (148, 145607), (154, 139934), (217, 99308), (244, 88319), (259, 83204), (308, 69967), (341, 63196), (407, 52948), (427, 50468), (434, 49654), (518, 41602), (671, 32116), (682, 31598), (814, 26474), (854, 25234), (868, 24827), (1036, 20801), (1147, 18788), (1342, 16058), (1364, 15799), (1628, 13237), (1708, 12617), (1891, 11396), (2257, 9548), (2294, 9394), (2387, 9028), (2684, 8029), (2849, 7564), (3782, 5698), (4514, 4774), (4588, 4697)]