21217408

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{7207}}^1$

素因数の和:7244

約数の個数: 32

約数和(自身を含む): 44112960

約数和(自身を除く): 22895552

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 368, 736, 1472, 2944, 7207, 14414, 28828, 57656, 115312, 165761, 230624, 331522, 461248, 663044, 922496, 1326088, 2652176, 5304352, 10608704, 21217408]

約数ペア:

[(1, 21217408), (2, 10608704), (4, 5304352), (8, 2652176), (16, 1326088), (23, 922496), (32, 663044), (46, 461248), (64, 331522), (92, 230624), (128, 165761), (184, 115312), (368, 57656), (736, 28828), (1472, 14414), (2944, 7207)]