21131110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2111}}^1$

素因数の和:2149

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 29962394

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 2111, 4222, 5005, 10010, 10555, 14777, 21110, 23221, 27443, 29554, 46442, 54886, 73885, 116105, 137215, 147770, 162547, 192101, 232210, 274430, 301873, 325094, 384202, 603746, 812735, 960505, 1509365, 1625470, 1921010, 2113111, 3018730, 4226222, 10565555, 21131110]

約数ペア:

[(1, 21131110), (2, 10565555), (5, 4226222), (7, 3018730), (10, 2113111), (11, 1921010), (13, 1625470), (14, 1509365), (22, 960505), (26, 812735), (35, 603746), (55, 384202), (65, 325094), (70, 301873), (77, 274430), (91, 232210), (110, 192101), (130, 162547), (143, 147770), (154, 137215), (182, 116105), (286, 73885), (385, 54886), (455, 46442), (715, 29554), (770, 27443), (910, 23221), (1001, 21110), (1430, 14777), (2002, 10555), (2111, 10010), (4222, 5005)]