21065772

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 61415424

約数和(自身を除く): 40349652

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 101, 156, 182, 191, 202, 273, 303, 364, 382, 404, 546, 573, 606, 707, 764, 1092, 1146, 1212, 1313, 1337, 1414, 2121, 2292, 2483, 2626, 2674, 2828, 3939, 4011, 4242, 4966, 5252, 5348, 7449, 7878, 8022, 8484, 9191, 9932, 14898, 15756, 16044, 17381, 18382, 19291, 27573, 29796, 34762, 36764, 38582, 52143, 55146, 57873, 69524, 77164, 104286, 110292, 115746, 135037, 208572, 231492, 250783, 270074, 405111, 501566, 540148, 752349, 810222, 1003132, 1504698, 1620444, 1755481, 3009396, 3510962, 5266443, 7021924, 10532886, 21065772]

約数ペア:

[(1, 21065772), (2, 10532886), (3, 7021924), (4, 5266443), (6, 3510962), (7, 3009396), (12, 1755481), (13, 1620444), (14, 1504698), (21, 1003132), (26, 810222), (28, 752349), (39, 540148), (42, 501566), (52, 405111), (78, 270074), (84, 250783), (91, 231492), (101, 208572), (156, 135037), (182, 115746), (191, 110292), (202, 104286), (273, 77164), (303, 69524), (364, 57873), (382, 55146), (404, 52143), (546, 38582), (573, 36764), (606, 34762), (707, 29796), (764, 27573), (1092, 19291), (1146, 18382), (1212, 17381), (1313, 16044), (1337, 15756), (1414, 14898), (2121, 9932), (2292, 9191), (2483, 8484), (2626, 8022), (2674, 7878), (2828, 7449), (3939, 5348), (4011, 5252), (4242, 4966)]