21261532

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{7561}}^1$

素因数の和:7621

約数の個数: 24

約数和(自身を含む): 40229840

約数和(自身を除く): 18968308

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 7561, 15122, 30244, 143659, 279757, 287318, 559514, 574636, 1119028, 5315383, 10630766, 21261532]

約数ペア:

[(1, 21261532), (2, 10630766), (4, 5315383), (19, 1119028), (37, 574636), (38, 559514), (74, 287318), (76, 279757), (148, 143659), (703, 30244), (1406, 15122), (2812, 7561)]