21919740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 64120896

約数和(自身を除く): 42201156

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 61, 106, 113, 122, 159, 183, 212, 226, 244, 265, 305, 318, 339, 366, 452, 530, 565, 610, 636, 678, 732, 795, 915, 1060, 1130, 1220, 1356, 1590, 1695, 1830, 2260, 3180, 3233, 3390, 3660, 5989, 6466, 6780, 6893, 9699, 11978, 12932, 13786, 16165, 17967, 19398, 20679, 23956, 27572, 29945, 32330, 34465, 35934, 38796, 41358, 48495, 59890, 64660, 68930, 71868, 82716, 89835, 96990, 103395, 119780, 137860, 179670, 193980, 206790, 359340, 365329, 413580, 730658, 1095987, 1461316, 1826645, 2191974, 3653290, 4383948, 5479935, 7306580, 10959870, 21919740]

約数ペア:

[(1, 21919740), (2, 10959870), (3, 7306580), (4, 5479935), (5, 4383948), (6, 3653290), (10, 2191974), (12, 1826645), (15, 1461316), (20, 1095987), (30, 730658), (53, 413580), (60, 365329), (61, 359340), (106, 206790), (113, 193980), (122, 179670), (159, 137860), (183, 119780), (212, 103395), (226, 96990), (244, 89835), (265, 82716), (305, 71868), (318, 68930), (339, 64660), (366, 59890), (452, 48495), (530, 41358), (565, 38796), (610, 35934), (636, 34465), (678, 32330), (732, 29945), (795, 27572), (915, 23956), (1060, 20679), (1130, 19398), (1220, 17967), (1356, 16165), (1590, 13786), (1695, 12932), (1830, 11978), (2260, 9699), (3180, 6893), (3233, 6780), (3390, 6466), (3660, 5989)]