21037716

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2693}}^1$

素因数の和:2741

約数の個数: 72

約数和(自身を含む): 62759424

約数和(自身を除く): 41721708

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 2693, 3906, 5386, 7812, 8079, 10772, 16158, 18851, 24237, 32316, 37702, 48474, 56553, 75404, 83483, 96948, 113106, 166966, 169659, 226212, 250449, 333932, 339318, 500898, 584381, 678636, 751347, 1001796, 1168762, 1502694, 1753143, 2337524, 3005388, 3506286, 5259429, 7012572, 10518858, 21037716]

約数ペア:

[(1, 21037716), (2, 10518858), (3, 7012572), (4, 5259429), (6, 3506286), (7, 3005388), (9, 2337524), (12, 1753143), (14, 1502694), (18, 1168762), (21, 1001796), (28, 751347), (31, 678636), (36, 584381), (42, 500898), (62, 339318), (63, 333932), (84, 250449), (93, 226212), (124, 169659), (126, 166966), (186, 113106), (217, 96948), (252, 83483), (279, 75404), (372, 56553), (434, 48474), (558, 37702), (651, 32316), (868, 24237), (1116, 18851), (1302, 16158), (1953, 10772), (2604, 8079), (2693, 7812), (3906, 5386)]