21313952

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:573

約数の個数: 48

約数和(自身を含む): 46194624

約数和(自身を除く): 24880672

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 151, 176, 302, 352, 401, 604, 802, 1208, 1604, 1661, 2416, 3208, 3322, 4411, 4832, 6416, 6644, 8822, 12832, 13288, 17644, 26576, 35288, 53152, 60551, 70576, 121102, 141152, 242204, 484408, 666061, 968816, 1332122, 1937632, 2664244, 5328488, 10656976, 21313952]

約数ペア:

[(1, 21313952), (2, 10656976), (4, 5328488), (8, 2664244), (11, 1937632), (16, 1332122), (22, 968816), (32, 666061), (44, 484408), (88, 242204), (151, 141152), (176, 121102), (302, 70576), (352, 60551), (401, 53152), (604, 35288), (802, 26576), (1208, 17644), (1604, 13288), (1661, 12832), (2416, 8822), (3208, 6644), (3322, 6416), (4411, 4832)]