21751832

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{631}}^1$

素因数の和:807

約数の個数: 32

約数和(自身を含む): 42470400

約数和(自身を除く): 20718568

約数列:

[1, 2, 4, 8, 31, 62, 124, 139, 248, 278, 556, 631, 1112, 1262, 2524, 4309, 5048, 8618, 17236, 19561, 34472, 39122, 78244, 87709, 156488, 175418, 350836, 701672, 2718979, 5437958, 10875916, 21751832]

約数ペア:

[(1, 21751832), (2, 10875916), (4, 5437958), (8, 2718979), (31, 701672), (62, 350836), (124, 175418), (139, 156488), (248, 87709), (278, 78244), (556, 39122), (631, 34472), (1112, 19561), (1262, 17236), (2524, 8618), (4309, 5048)]