21074672

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16673}}^1$

素因数の和:16760

約数の個数: 20

約数和(自身を含む): 41351520

約数和(自身を除く): 20276848

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16673, 33346, 66692, 133384, 266768, 1317167, 2634334, 5268668, 10537336, 21074672]

約数ペア:

[(1, 21074672), (2, 10537336), (4, 5268668), (8, 2634334), (16, 1317167), (79, 266768), (158, 133384), (316, 66692), (632, 33346), (1264, 16673)]