21580768

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1657}}^1$

素因数の和:1715

約数の個数: 48

約数和(自身を含む): 47631024

約数和(自身を除く): 26050256

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 74, 88, 148, 176, 296, 352, 407, 592, 814, 1184, 1628, 1657, 3256, 3314, 6512, 6628, 13024, 13256, 18227, 26512, 36454, 53024, 61309, 72908, 122618, 145816, 245236, 291632, 490472, 583264, 674399, 980944, 1348798, 1961888, 2697596, 5395192, 10790384, 21580768]

約数ペア:

[(1, 21580768), (2, 10790384), (4, 5395192), (8, 2697596), (11, 1961888), (16, 1348798), (22, 980944), (32, 674399), (37, 583264), (44, 490472), (74, 291632), (88, 245236), (148, 145816), (176, 122618), (296, 72908), (352, 61309), (407, 53024), (592, 36454), (814, 26512), (1184, 18227), (1628, 13256), (1657, 13024), (3256, 6628), (3314, 6512)]