21863772

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1637}}^1$

素因数の和:1707

約数の個数: 72

約数和(自身を含む): 64393056

約数和(自身を除く): 42529284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 742, 954, 1113, 1484, 1637, 1908, 2226, 3274, 3339, 4452, 4911, 6548, 6678, 9822, 11459, 13356, 14733, 19644, 22918, 29466, 34377, 45836, 58932, 68754, 86761, 103131, 137508, 173522, 206262, 260283, 347044, 412524, 520566, 607327, 780849, 1041132, 1214654, 1561698, 1821981, 2429308, 3123396, 3643962, 5465943, 7287924, 10931886, 21863772]

約数ペア:

[(1, 21863772), (2, 10931886), (3, 7287924), (4, 5465943), (6, 3643962), (7, 3123396), (9, 2429308), (12, 1821981), (14, 1561698), (18, 1214654), (21, 1041132), (28, 780849), (36, 607327), (42, 520566), (53, 412524), (63, 347044), (84, 260283), (106, 206262), (126, 173522), (159, 137508), (212, 103131), (252, 86761), (318, 68754), (371, 58932), (477, 45836), (636, 34377), (742, 29466), (954, 22918), (1113, 19644), (1484, 14733), (1637, 13356), (1908, 11459), (2226, 9822), (3274, 6678), (3339, 6548), (4452, 4911)]