21351746

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14936254

約数列:

[1, 2, 13, 26, 31, 59, 62, 118, 403, 449, 767, 806, 898, 1534, 1829, 3658, 5837, 11674, 13919, 23777, 26491, 27838, 47554, 52982, 180947, 344383, 361894, 688766, 821221, 1642442, 10675873, 21351746]

約数ペア:

[(1, 21351746), (2, 10675873), (13, 1642442), (26, 821221), (31, 688766), (59, 361894), (62, 344383), (118, 180947), (403, 52982), (449, 47554), (767, 27838), (806, 26491), (898, 23777), (1534, 13919), (1829, 11674), (3658, 5837)]