19530765

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 36391680

約数和(自身を除く): 16860915

約数列:

[1, 3, 5, 9, 15, 19, 45, 53, 57, 95, 159, 171, 265, 285, 431, 477, 795, 855, 1007, 1293, 2155, 2385, 3021, 3879, 5035, 6465, 8189, 9063, 15105, 19395, 22843, 24567, 40945, 45315, 68529, 73701, 114215, 122835, 205587, 342645, 368505, 434017, 1027935, 1302051, 2170085, 3906153, 6510255, 19530765]

約数ペア:

[(1, 19530765), (3, 6510255), (5, 3906153), (9, 2170085), (15, 1302051), (19, 1027935), (45, 434017), (53, 368505), (57, 342645), (95, 205587), (159, 122835), (171, 114215), (265, 73701), (285, 68529), (431, 45315), (477, 40945), (795, 24567), (855, 22843), (1007, 19395), (1293, 15105), (2155, 9063), (2385, 8189), (3021, 6465), (3879, 5035)]