21041330

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 38864448

約数和(自身を除く): 17823118

約数列:

[1, 2, 5, 10, 83, 101, 166, 202, 251, 415, 502, 505, 830, 1010, 1255, 2510, 8383, 16766, 20833, 25351, 41666, 41915, 50702, 83830, 104165, 126755, 208330, 253510, 2104133, 4208266, 10520665, 21041330]

約数ペア:

[(1, 21041330), (2, 10520665), (5, 4208266), (10, 2104133), (83, 253510), (101, 208330), (166, 126755), (202, 104165), (251, 83830), (415, 50702), (502, 41915), (505, 41666), (830, 25351), (1010, 20833), (1255, 16766), (2510, 8383)]