18683408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{461}}^1$

素因数の和:635

約数の個数: 40

約数和(自身を含む): 38669400

約数和(自身を除く): 19985992

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 149, 272, 298, 461, 596, 922, 1192, 1844, 2384, 2533, 3688, 5066, 7376, 7837, 10132, 15674, 20264, 31348, 40528, 62696, 68689, 125392, 137378, 274756, 549512, 1099024, 1167713, 2335426, 4670852, 9341704, 18683408]

約数ペア:

[(1, 18683408), (2, 9341704), (4, 4670852), (8, 2335426), (16, 1167713), (17, 1099024), (34, 549512), (68, 274756), (136, 137378), (149, 125392), (272, 68689), (298, 62696), (461, 40528), (596, 31348), (922, 20264), (1192, 15674), (1844, 10132), (2384, 7837), (2533, 7376), (3688, 5066)]