21997890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10627}}^1$

素因数の和:10663

約数の個数: 48

約数和(自身を含む): 59686848

約数和(自身を除く): 37688958

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 10627, 21254, 31881, 53135, 63762, 95643, 106270, 159405, 191286, 244421, 318810, 478215, 488842, 733263, 956430, 1222105, 1466526, 2199789, 2444210, 3666315, 4399578, 7332630, 10998945, 21997890]

約数ペア:

[(1, 21997890), (2, 10998945), (3, 7332630), (5, 4399578), (6, 3666315), (9, 2444210), (10, 2199789), (15, 1466526), (18, 1222105), (23, 956430), (30, 733263), (45, 488842), (46, 478215), (69, 318810), (90, 244421), (115, 191286), (138, 159405), (207, 106270), (230, 95643), (345, 63762), (414, 53135), (690, 31881), (1035, 21254), (2070, 10627)]