21601188861

素因数分解:

$3^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{446647}}^1$

素因数の和:446718

約数の個数: 32

約数和(自身を含む): 34302566400

約数和(自身を除く): 12701377539

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 343, 987, 1029, 2303, 6909, 16121, 48363, 446647, 1339941, 3126529, 9379587, 20992409, 21885703, 62977227, 65657109, 146946863, 153199921, 440840589, 459599763, 1028628041, 3085884123, 7200396287, 21601188861]

約数ペア:

[(1, 21601188861), (3, 7200396287), (7, 3085884123), (21, 1028628041), (47, 459599763), (49, 440840589), (141, 153199921), (147, 146946863), (329, 65657109), (343, 62977227), (987, 21885703), (1029, 20992409), (2303, 9379587), (6909, 3126529), (16121, 1339941), (48363, 446647)]