21343376

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1163}}^1$

素因数の和:1239

約数の個数: 40

約数和(自身を含む): 43878144

約数和(自身を除く): 22534768

約数列:

[1, 2, 4, 8, 16, 31, 37, 62, 74, 124, 148, 248, 296, 496, 592, 1147, 1163, 2294, 2326, 4588, 4652, 9176, 9304, 18352, 18608, 36053, 43031, 72106, 86062, 144212, 172124, 288424, 344248, 576848, 688496, 1333961, 2667922, 5335844, 10671688, 21343376]

約数ペア:

[(1, 21343376), (2, 10671688), (4, 5335844), (8, 2667922), (16, 1333961), (31, 688496), (37, 576848), (62, 344248), (74, 288424), (124, 172124), (148, 144212), (248, 86062), (296, 72106), (496, 43031), (592, 36053), (1147, 18608), (1163, 18352), (2294, 9304), (2326, 9176), (4588, 4652)]