19956591

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 30935040

約数和(自身を除く): 10978449

約数列:

[1, 3, 9, 27, 31, 93, 113, 211, 279, 339, 633, 837, 1017, 1899, 3051, 3503, 5697, 6541, 10509, 19623, 23843, 31527, 58869, 71529, 94581, 176607, 214587, 643761, 739133, 2217399, 6652197, 19956591]

約数ペア:

[(1, 19956591), (3, 6652197), (9, 2217399), (27, 739133), (31, 643761), (93, 214587), (113, 176607), (211, 94581), (279, 71529), (339, 58869), (633, 31527), (837, 23843), (1017, 19623), (1899, 10509), (3051, 6541), (3503, 5697)]