21221887

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{283}}^1$

素因数の和:414

約数の個数: 16

約数和(自身を含む): 22901760

約数和(自身を除く): 1679873

約数列:

[1, 31, 41, 59, 283, 1271, 1829, 2419, 8773, 11603, 16697, 74989, 359693, 517607, 684577, 21221887]

約数ペア:

[(1, 21221887), (31, 684577), (41, 517607), (59, 359693), (283, 74989), (1271, 16697), (1829, 11603), (2419, 8773)]