21203640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{677}}^1$

素因数の和:726

約数の個数: 128

約数和(自身を含む): 73224000

約数和(自身を除く): 52020360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 87, 90, 108, 116, 120, 135, 145, 174, 180, 216, 232, 261, 270, 290, 348, 360, 435, 522, 540, 580, 677, 696, 783, 870, 1044, 1080, 1160, 1305, 1354, 1566, 1740, 2031, 2088, 2610, 2708, 3132, 3385, 3480, 3915, 4062, 5220, 5416, 6093, 6264, 6770, 7830, 8124, 10155, 10440, 12186, 13540, 15660, 16248, 18279, 19633, 20310, 24372, 27080, 30465, 31320, 36558, 39266, 40620, 48744, 58899, 60930, 73116, 78532, 81240, 91395, 98165, 117798, 121860, 146232, 157064, 176697, 182790, 196330, 235596, 243720, 294495, 353394, 365580, 392660, 471192, 530091, 588990, 706788, 731160, 785320, 883485, 1060182, 1177980, 1413576, 1766970, 2120364, 2355960, 2650455, 3533940, 4240728, 5300910, 7067880, 10601820, 21203640]

約数ペア:

[(1, 21203640), (2, 10601820), (3, 7067880), (4, 5300910), (5, 4240728), (6, 3533940), (8, 2650455), (9, 2355960), (10, 2120364), (12, 1766970), (15, 1413576), (18, 1177980), (20, 1060182), (24, 883485), (27, 785320), (29, 731160), (30, 706788), (36, 588990), (40, 530091), (45, 471192), (54, 392660), (58, 365580), (60, 353394), (72, 294495), (87, 243720), (90, 235596), (108, 196330), (116, 182790), (120, 176697), (135, 157064), (145, 146232), (174, 121860), (180, 117798), (216, 98165), (232, 91395), (261, 81240), (270, 78532), (290, 73116), (348, 60930), (360, 58899), (435, 48744), (522, 40620), (540, 39266), (580, 36558), (677, 31320), (696, 30465), (783, 27080), (870, 24372), (1044, 20310), (1080, 19633), (1160, 18279), (1305, 16248), (1354, 15660), (1566, 13540), (1740, 12186), (2031, 10440), (2088, 10155), (2610, 8124), (2708, 7830), (3132, 6770), (3385, 6264), (3480, 6093), (3915, 5416), (4062, 5220)]