21849040

素因数分解:

$2^4\times 5^1\times {\mathrm{273113}}^1$

素因数の和:273126

約数の個数: 20

約数和(自身を含む): 50799204

約数和(自身を除く): 28950164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273113, 546226, 1092452, 1365565, 2184904, 2731130, 4369808, 5462260, 10924520, 21849040]

約数ペア:

[(1, 21849040), (2, 10924520), (4, 5462260), (5, 4369808), (8, 2731130), (10, 2184904), (16, 1365565), (20, 1092452), (40, 546226), (80, 273113)]