21332402

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 43008000

約数和(自身を除く): 21675598

約数列:

[1, 2, 7, 13, 14, 19, 26, 31, 38, 62, 91, 133, 182, 199, 217, 247, 266, 398, 403, 434, 494, 589, 806, 1178, 1393, 1729, 2587, 2786, 2821, 3458, 3781, 4123, 5174, 5642, 6169, 7562, 7657, 8246, 12338, 15314, 18109, 26467, 36218, 43183, 49153, 52934, 53599, 80197, 86366, 98306, 107198, 117211, 160394, 234422, 344071, 561379, 688142, 820477, 1122758, 1523743, 1640954, 3047486, 10666201, 21332402]

約数ペア:

[(1, 21332402), (2, 10666201), (7, 3047486), (13, 1640954), (14, 1523743), (19, 1122758), (26, 820477), (31, 688142), (38, 561379), (62, 344071), (91, 234422), (133, 160394), (182, 117211), (199, 107198), (217, 98306), (247, 86366), (266, 80197), (398, 53599), (403, 52934), (434, 49153), (494, 43183), (589, 36218), (806, 26467), (1178, 18109), (1393, 15314), (1729, 12338), (2587, 8246), (2786, 7657), (2821, 7562), (3458, 6169), (3781, 5642), (4123, 5174)]