21799216

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1601}}^1$

素因数の和:1669

約数の個数: 40

約数和(自身を含む): 45291744

約数和(自身を除く): 23492528

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 74, 92, 148, 184, 296, 368, 592, 851, 1601, 1702, 3202, 3404, 6404, 6808, 12808, 13616, 25616, 36823, 59237, 73646, 118474, 147292, 236948, 294584, 473896, 589168, 947792, 1362451, 2724902, 5449804, 10899608, 21799216]

約数ペア:

[(1, 21799216), (2, 10899608), (4, 5449804), (8, 2724902), (16, 1362451), (23, 947792), (37, 589168), (46, 473896), (74, 294584), (92, 236948), (148, 147292), (184, 118474), (296, 73646), (368, 59237), (592, 36823), (851, 25616), (1601, 13616), (1702, 12808), (3202, 6808), (3404, 6404)]