18427554

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 43994880

約数和(自身を除く): 25567326

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 37, 46, 54, 69, 74, 111, 138, 207, 222, 333, 401, 414, 621, 666, 802, 851, 999, 1203, 1242, 1702, 1998, 2406, 2553, 3609, 5106, 7218, 7659, 9223, 10827, 14837, 15318, 18446, 21654, 22977, 27669, 29674, 44511, 45954, 55338, 83007, 89022, 133533, 166014, 249021, 267066, 341251, 400599, 498042, 682502, 801198, 1023753, 2047506, 3071259, 6142518, 9213777, 18427554]

約数ペア:

[(1, 18427554), (2, 9213777), (3, 6142518), (6, 3071259), (9, 2047506), (18, 1023753), (23, 801198), (27, 682502), (37, 498042), (46, 400599), (54, 341251), (69, 267066), (74, 249021), (111, 166014), (138, 133533), (207, 89022), (222, 83007), (333, 55338), (401, 45954), (414, 44511), (621, 29674), (666, 27669), (802, 22977), (851, 21654), (999, 18446), (1203, 15318), (1242, 14837), (1702, 10827), (1998, 9223), (2406, 7659), (2553, 7218), (3609, 5106)]