21162972

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 50964480

約数和(自身を除く): 29801508

約数列:

[1, 2, 3, 4, 6, 12, 47, 94, 141, 157, 188, 239, 282, 314, 471, 478, 564, 628, 717, 942, 956, 1434, 1884, 2868, 7379, 11233, 14758, 22137, 22466, 29516, 33699, 37523, 44274, 44932, 67398, 75046, 88548, 112569, 134796, 150092, 225138, 450276, 1763581, 3527162, 5290743, 7054324, 10581486, 21162972]

約数ペア:

[(1, 21162972), (2, 10581486), (3, 7054324), (4, 5290743), (6, 3527162), (12, 1763581), (47, 450276), (94, 225138), (141, 150092), (157, 134796), (188, 112569), (239, 88548), (282, 75046), (314, 67398), (471, 44932), (478, 44274), (564, 37523), (628, 33699), (717, 29516), (942, 22466), (956, 22137), (1434, 14758), (1884, 11233), (2868, 7379)]