21640354

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 36590400

約数和(自身を除く): 14950046

約数列:

[1, 2, 17, 19, 34, 38, 139, 241, 278, 323, 482, 646, 2363, 2641, 4097, 4579, 4726, 5282, 8194, 9158, 33499, 44897, 66998, 77843, 89794, 155686, 569483, 636481, 1138966, 1272962, 10820177, 21640354]

約数ペア:

[(1, 21640354), (2, 10820177), (17, 1272962), (19, 1138966), (34, 636481), (38, 569483), (139, 155686), (241, 89794), (278, 77843), (323, 66998), (482, 44897), (646, 33499), (2363, 9158), (2641, 8194), (4097, 5282), (4579, 4726)]