21496376

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 45246600

約数和(自身を除く): 23750224

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 121, 212, 242, 419, 424, 484, 583, 838, 968, 1166, 1676, 2332, 3352, 4609, 4664, 6413, 9218, 12826, 18436, 22207, 25652, 36872, 44414, 50699, 51304, 88828, 101398, 177656, 202796, 244277, 405592, 488554, 977108, 1954216, 2687047, 5374094, 10748188, 21496376]

約数ペア:

[(1, 21496376), (2, 10748188), (4, 5374094), (8, 2687047), (11, 1954216), (22, 977108), (44, 488554), (53, 405592), (88, 244277), (106, 202796), (121, 177656), (212, 101398), (242, 88828), (419, 51304), (424, 50699), (484, 44414), (583, 36872), (838, 25652), (968, 22207), (1166, 18436), (1676, 12826), (2332, 9218), (3352, 6413), (4609, 4664)]