20993406

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{9431}}^1$

素因数の和:9496

約数の個数: 32

約数和(自身を含む): 48895488

約数和(自身を除く): 27902082

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 159, 318, 371, 742, 1113, 2226, 9431, 18862, 28293, 56586, 66017, 132034, 198051, 396102, 499843, 999686, 1499529, 2999058, 3498901, 6997802, 10496703, 20993406]

約数ペア:

[(1, 20993406), (2, 10496703), (3, 6997802), (6, 3498901), (7, 2999058), (14, 1499529), (21, 999686), (42, 499843), (53, 396102), (106, 198051), (159, 132034), (318, 66017), (371, 56586), (742, 28293), (1113, 18862), (2226, 9431)]