21638295

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{941}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 43497792

約数和(自身を除く): 21859497

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 73, 105, 219, 315, 365, 511, 657, 941, 1095, 1533, 2555, 2823, 3285, 4599, 4705, 6587, 7665, 8469, 14115, 19761, 22995, 32935, 42345, 59283, 68693, 98805, 206079, 296415, 343465, 480851, 618237, 1030395, 1442553, 2404255, 3091185, 4327659, 7212765, 21638295]

約数ペア:

[(1, 21638295), (3, 7212765), (5, 4327659), (7, 3091185), (9, 2404255), (15, 1442553), (21, 1030395), (35, 618237), (45, 480851), (63, 343465), (73, 296415), (105, 206079), (219, 98805), (315, 68693), (365, 59283), (511, 42345), (657, 32935), (941, 22995), (1095, 19761), (1533, 14115), (2555, 8469), (2823, 7665), (3285, 6587), (4599, 4705)]