21167596

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:286

約数の個数: 36

約数和(自身を含む): 39748968

約数和(自身を除く): 18581372

約数列:

[1, 2, 4, 19, 38, 76, 107, 137, 214, 274, 361, 428, 548, 722, 1444, 2033, 2603, 4066, 5206, 8132, 10412, 14659, 29318, 38627, 49457, 58636, 77254, 98914, 154508, 197828, 278521, 557042, 1114084, 5291899, 10583798, 21167596]

約数ペア:

[(1, 21167596), (2, 10583798), (4, 5291899), (19, 1114084), (38, 557042), (76, 278521), (107, 197828), (137, 154508), (214, 98914), (274, 77254), (361, 58636), (428, 49457), (548, 38627), (722, 29318), (1444, 14659), (2033, 10412), (2603, 8132), (4066, 5206)]