21897173660

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{1871}}^1$

素因数の和:2175

約数の個数: 96

約数和(自身を含む): 47908433664

約数和(自身を除く): 26011260004

約数列:

[1, 2, 4, 5, 10, 20, 53, 61, 106, 122, 181, 212, 244, 265, 305, 362, 530, 610, 724, 905, 1060, 1220, 1810, 1871, 3233, 3620, 3742, 6466, 7484, 9355, 9593, 11041, 12932, 16165, 18710, 19186, 22082, 32330, 37420, 38372, 44164, 47965, 55205, 64660, 95930, 99163, 110410, 114131, 191860, 198326, 220820, 228262, 338651, 396652, 456524, 495815, 570655, 585173, 677302, 991630, 1141310, 1170346, 1354604, 1693255, 1983260, 2282620, 2340692, 2925865, 3386510, 5851730, 6048943, 6773020, 11703460, 12097886, 17948503, 20657711, 24195772, 30244715, 35897006, 41315422, 60489430, 71794012, 82630844, 89742515, 103288555, 120978860, 179485030, 206577110, 358970060, 413154220, 1094858683, 2189717366, 4379434732, 5474293415, 10948586830, 21897173660]

約数ペア:

[(1, 21897173660), (2, 10948586830), (4, 5474293415), (5, 4379434732), (10, 2189717366), (20, 1094858683), (53, 413154220), (61, 358970060), (106, 206577110), (122, 179485030), (181, 120978860), (212, 103288555), (244, 89742515), (265, 82630844), (305, 71794012), (362, 60489430), (530, 41315422), (610, 35897006), (724, 30244715), (905, 24195772), (1060, 20657711), (1220, 17948503), (1810, 12097886), (1871, 11703460), (3233, 6773020), (3620, 6048943), (3742, 5851730), (6466, 3386510), (7484, 2925865), (9355, 2340692), (9593, 2282620), (11041, 1983260), (12932, 1693255), (16165, 1354604), (18710, 1170346), (19186, 1141310), (22082, 991630), (32330, 677302), (37420, 585173), (38372, 570655), (44164, 495815), (47965, 456524), (55205, 396652), (64660, 338651), (95930, 228262), (99163, 220820), (110410, 198326), (114131, 191860)]