21213684

素因数分解:

$2^2\times 3^3\times {\mathrm{89}}^1\times {\mathrm{2207}}^1$

素因数の和:2309

約数の個数: 48

約数和(自身を含む): 55641600

約数和(自身を除く): 34427916

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 89, 108, 178, 267, 356, 534, 801, 1068, 1602, 2207, 2403, 3204, 4414, 4806, 6621, 8828, 9612, 13242, 19863, 26484, 39726, 59589, 79452, 119178, 196423, 238356, 392846, 589269, 785692, 1178538, 1767807, 2357076, 3535614, 5303421, 7071228, 10606842, 21213684]

約数ペア:

[(1, 21213684), (2, 10606842), (3, 7071228), (4, 5303421), (6, 3535614), (9, 2357076), (12, 1767807), (18, 1178538), (27, 785692), (36, 589269), (54, 392846), (89, 238356), (108, 196423), (178, 119178), (267, 79452), (356, 59589), (534, 39726), (801, 26484), (1068, 19863), (1602, 13242), (2207, 9612), (2403, 8828), (3204, 6621), (4414, 4806)]