21581170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4049}}^1$

素因数の和:4110

約数の個数: 32

約数和(自身を含む): 42865200

約数和(自身を除く): 21284030

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 4049, 5330, 8098, 20245, 40490, 52637, 105274, 166009, 263185, 332018, 526370, 830045, 1660090, 2158117, 4316234, 10790585, 21581170]

約数ペア:

[(1, 21581170), (2, 10790585), (5, 4316234), (10, 2158117), (13, 1660090), (26, 830045), (41, 526370), (65, 332018), (82, 263185), (130, 166009), (205, 105274), (410, 52637), (533, 40490), (1066, 20245), (2665, 8098), (4049, 5330)]