19880056

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2351}}^1$

素因数の和:2515

約数の個数: 32

約数和(自身を含む): 42900480

約数和(自身を除く): 23020424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 302, 604, 1057, 1208, 2114, 2351, 4228, 4702, 8456, 9404, 16457, 18808, 32914, 65828, 131656, 355001, 710002, 1420004, 2485007, 2840008, 4970014, 9940028, 19880056]

約数ペア:

[(1, 19880056), (2, 9940028), (4, 4970014), (7, 2840008), (8, 2485007), (14, 1420004), (28, 710002), (56, 355001), (151, 131656), (302, 65828), (604, 32914), (1057, 18808), (1208, 16457), (2114, 9404), (2351, 8456), (4228, 4702)]