21857730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 54587520

約数和(自身を除く): 32729790

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 59, 106, 118, 159, 177, 233, 265, 295, 318, 354, 466, 530, 590, 699, 795, 885, 1165, 1398, 1590, 1770, 2330, 3127, 3495, 6254, 6990, 9381, 12349, 13747, 15635, 18762, 24698, 27494, 31270, 37047, 41241, 46905, 61745, 68735, 74094, 82482, 93810, 123490, 137470, 185235, 206205, 370470, 412410, 728591, 1457182, 2185773, 3642955, 4371546, 7285910, 10928865, 21857730]

約数ペア:

[(1, 21857730), (2, 10928865), (3, 7285910), (5, 4371546), (6, 3642955), (10, 2185773), (15, 1457182), (30, 728591), (53, 412410), (59, 370470), (106, 206205), (118, 185235), (159, 137470), (177, 123490), (233, 93810), (265, 82482), (295, 74094), (318, 68735), (354, 61745), (466, 46905), (530, 41241), (590, 37047), (699, 31270), (795, 27494), (885, 24698), (1165, 18762), (1398, 15635), (1590, 13747), (1770, 12349), (2330, 9381), (3127, 6990), (3495, 6254)]