19878426

素因数分解:

$2^1\times 3^3\times {\mathrm{137}}^1\times {\mathrm{2687}}^1$

素因数の和:2835

約数の個数: 32

約数和(自身を含む): 44513280

約数和(自身を除く): 24634854

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 137, 274, 411, 822, 1233, 2466, 2687, 3699, 5374, 7398, 8061, 16122, 24183, 48366, 72549, 145098, 368119, 736238, 1104357, 2208714, 3313071, 6626142, 9939213, 19878426]

約数ペア:

[(1, 19878426), (2, 9939213), (3, 6626142), (6, 3313071), (9, 2208714), (18, 1104357), (27, 736238), (54, 368119), (137, 145098), (274, 72549), (411, 48366), (822, 24183), (1233, 16122), (2466, 8061), (2687, 7398), (3699, 5374)]