21628544

素因数分解:

$2^7\times 7^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 49939200

約数和(自身を除く): 28310656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 101, 112, 128, 202, 224, 239, 404, 448, 478, 707, 808, 896, 956, 1414, 1616, 1673, 1912, 2828, 3232, 3346, 3824, 5656, 6464, 6692, 7648, 11312, 12928, 13384, 15296, 22624, 24139, 26768, 30592, 45248, 48278, 53536, 90496, 96556, 107072, 168973, 193112, 214144, 337946, 386224, 675892, 772448, 1351784, 1544896, 2703568, 3089792, 5407136, 10814272, 21628544]

約数ペア:

[(1, 21628544), (2, 10814272), (4, 5407136), (7, 3089792), (8, 2703568), (14, 1544896), (16, 1351784), (28, 772448), (32, 675892), (56, 386224), (64, 337946), (101, 214144), (112, 193112), (128, 168973), (202, 107072), (224, 96556), (239, 90496), (404, 53536), (448, 48278), (478, 45248), (707, 30592), (808, 26768), (896, 24139), (956, 22624), (1414, 15296), (1616, 13384), (1673, 12928), (1912, 11312), (2828, 7648), (3232, 6692), (3346, 6464), (3824, 5656)]