21677618

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 36039168

約数和(自身を除く): 14361550

約数列:

[1, 2, 17, 31, 34, 62, 131, 157, 262, 314, 527, 1054, 2227, 2669, 4061, 4454, 4867, 5338, 8122, 9734, 20567, 41134, 69037, 82739, 138074, 165478, 349639, 637577, 699278, 1275154, 10838809, 21677618]

約数ペア:

[(1, 21677618), (2, 10838809), (17, 1275154), (31, 699278), (34, 637577), (62, 349639), (131, 165478), (157, 138074), (262, 82739), (314, 69037), (527, 41134), (1054, 20567), (2227, 9734), (2669, 8122), (4061, 5338), (4454, 4867)]