213473648

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{218723}}^1$

素因数の和:218792

約数の個数: 20

約数和(自身を含む): 420387528

約数和(自身を除く): 206913880

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 218723, 437446, 874892, 1749784, 3499568, 13342103, 26684206, 53368412, 106736824, 213473648]

約数ペア:

[(1, 213473648), (2, 106736824), (4, 53368412), (8, 26684206), (16, 13342103), (61, 3499568), (122, 1749784), (244, 874892), (488, 437446), (976, 218723)]