21655952

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{233}}^1$

素因数の和:435

約数の個数: 40

約数和(自身を含む): 43553016

約数和(自身を除く): 21897064

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 157, 233, 296, 314, 466, 592, 628, 932, 1256, 1864, 2512, 3728, 5809, 8621, 11618, 17242, 23236, 34484, 36581, 46472, 68968, 73162, 92944, 137936, 146324, 292648, 585296, 1353497, 2706994, 5413988, 10827976, 21655952]

約数ペア:

[(1, 21655952), (2, 10827976), (4, 5413988), (8, 2706994), (16, 1353497), (37, 585296), (74, 292648), (148, 146324), (157, 137936), (233, 92944), (296, 73162), (314, 68968), (466, 46472), (592, 36581), (628, 34484), (932, 23236), (1256, 17242), (1864, 11618), (2512, 8621), (3728, 5809)]