21748920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9539}}^1$

素因数の和:9572

約数の個数: 64

約数和(自身を含む): 68688000

約数和(自身を除く): 46939080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9539, 19078, 28617, 38156, 47695, 57234, 76312, 95390, 114468, 143085, 181241, 190780, 228936, 286170, 362482, 381560, 543723, 572340, 724964, 906205, 1087446, 1144680, 1449928, 1812410, 2174892, 2718615, 3624820, 4349784, 5437230, 7249640, 10874460, 21748920]

約数ペア:

[(1, 21748920), (2, 10874460), (3, 7249640), (4, 5437230), (5, 4349784), (6, 3624820), (8, 2718615), (10, 2174892), (12, 1812410), (15, 1449928), (19, 1144680), (20, 1087446), (24, 906205), (30, 724964), (38, 572340), (40, 543723), (57, 381560), (60, 362482), (76, 286170), (95, 228936), (114, 190780), (120, 181241), (152, 143085), (190, 114468), (228, 95390), (285, 76312), (380, 57234), (456, 47695), (570, 38156), (760, 28617), (1140, 19078), (2280, 9539)]