21163890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1087}}^1$

素因数の和:1167

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 35238030

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 59, 66, 110, 118, 165, 177, 295, 330, 354, 590, 649, 885, 1087, 1298, 1770, 1947, 2174, 3245, 3261, 3894, 5435, 6490, 6522, 9735, 10870, 11957, 16305, 19470, 23914, 32610, 35871, 59785, 64133, 71742, 119570, 128266, 179355, 192399, 320665, 358710, 384798, 641330, 705463, 961995, 1410926, 1923990, 2116389, 3527315, 4232778, 7054630, 10581945, 21163890]

約数ペア:

[(1, 21163890), (2, 10581945), (3, 7054630), (5, 4232778), (6, 3527315), (10, 2116389), (11, 1923990), (15, 1410926), (22, 961995), (30, 705463), (33, 641330), (55, 384798), (59, 358710), (66, 320665), (110, 192399), (118, 179355), (165, 128266), (177, 119570), (295, 71742), (330, 64133), (354, 59785), (590, 35871), (649, 32610), (885, 23914), (1087, 19470), (1298, 16305), (1770, 11957), (1947, 10870), (2174, 9735), (3245, 6522), (3261, 6490), (3894, 5435)]