21398264

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{373}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 41199840

約数和(自身を除く): 19801576

約数列:

[1, 2, 4, 8, 71, 101, 142, 202, 284, 373, 404, 568, 746, 808, 1492, 2984, 7171, 14342, 26483, 28684, 37673, 52966, 57368, 75346, 105932, 150692, 211864, 301384, 2674783, 5349566, 10699132, 21398264]

約数ペア:

[(1, 21398264), (2, 10699132), (4, 5349566), (8, 2674783), (71, 301384), (101, 211864), (142, 150692), (202, 105932), (284, 75346), (373, 57368), (404, 52966), (568, 37673), (746, 28684), (808, 26483), (1492, 14342), (2984, 7171)]