21815730

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1171}}^1$

素因数の和:1213

約数の個数: 80

約数和(自身を含む): 61262784

約数和(自身を除く): 39447054

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 81, 90, 115, 135, 138, 162, 207, 230, 270, 345, 405, 414, 621, 690, 810, 1035, 1171, 1242, 1863, 2070, 2342, 3105, 3513, 3726, 5855, 6210, 7026, 9315, 10539, 11710, 17565, 18630, 21078, 26933, 31617, 35130, 52695, 53866, 63234, 80799, 94851, 105390, 134665, 158085, 161598, 189702, 242397, 269330, 316170, 403995, 474255, 484794, 727191, 807990, 948510, 1211985, 1454382, 2181573, 2423970, 3635955, 4363146, 7271910, 10907865, 21815730]

約数ペア:

[(1, 21815730), (2, 10907865), (3, 7271910), (5, 4363146), (6, 3635955), (9, 2423970), (10, 2181573), (15, 1454382), (18, 1211985), (23, 948510), (27, 807990), (30, 727191), (45, 484794), (46, 474255), (54, 403995), (69, 316170), (81, 269330), (90, 242397), (115, 189702), (135, 161598), (138, 158085), (162, 134665), (207, 105390), (230, 94851), (270, 80799), (345, 63234), (405, 53866), (414, 52695), (621, 35130), (690, 31617), (810, 26933), (1035, 21078), (1171, 18630), (1242, 17565), (1863, 11710), (2070, 10539), (2342, 9315), (3105, 7026), (3513, 6210), (3726, 5855)]