21052528

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11057}}^1$

素因数の和:11089

約数の個数: 40

約数和(自身を含む): 49362912

約数和(自身を除く): 28310384

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11057, 22114, 44228, 77399, 88456, 154798, 176912, 187969, 309596, 375938, 619192, 751876, 1238384, 1315783, 1503752, 2631566, 3007504, 5263132, 10526264, 21052528]

約数ペア:

[(1, 21052528), (2, 10526264), (4, 5263132), (7, 3007504), (8, 2631566), (14, 1503752), (16, 1315783), (17, 1238384), (28, 751876), (34, 619192), (56, 375938), (68, 309596), (112, 187969), (119, 176912), (136, 154798), (238, 88456), (272, 77399), (476, 44228), (952, 22114), (1904, 11057)]