20214544

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1787}}^1$

素因数の和:1903

約数の個数: 40

約数和(自身を含む): 45229248

約数和(自身を除く): 25014704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 1787, 2828, 3574, 5656, 7148, 11312, 12509, 14296, 25018, 28592, 50036, 100072, 180487, 200144, 360974, 721948, 1263409, 1443896, 2526818, 2887792, 5053636, 10107272, 20214544]

約数ペア:

[(1, 20214544), (2, 10107272), (4, 5053636), (7, 2887792), (8, 2526818), (14, 1443896), (16, 1263409), (28, 721948), (56, 360974), (101, 200144), (112, 180487), (202, 100072), (404, 50036), (707, 28592), (808, 25018), (1414, 14296), (1616, 12509), (1787, 11312), (2828, 7148), (3574, 5656)]