21247168

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:305

約数の個数: 56

約数和(自身を含む): 45079920

約数和(自身を除く): 23832752

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 101, 152, 173, 202, 304, 346, 404, 608, 692, 808, 1216, 1384, 1616, 1919, 2768, 3232, 3287, 3838, 5536, 6464, 6574, 7676, 11072, 13148, 15352, 17473, 26296, 30704, 34946, 52592, 61408, 69892, 105184, 122816, 139784, 210368, 279568, 331987, 559136, 663974, 1118272, 1327948, 2655896, 5311792, 10623584, 21247168]

約数ペア:

[(1, 21247168), (2, 10623584), (4, 5311792), (8, 2655896), (16, 1327948), (19, 1118272), (32, 663974), (38, 559136), (64, 331987), (76, 279568), (101, 210368), (152, 139784), (173, 122816), (202, 105184), (304, 69892), (346, 61408), (404, 52592), (608, 34946), (692, 30704), (808, 26296), (1216, 17473), (1384, 15352), (1616, 13148), (1919, 11072), (2768, 7676), (3232, 6574), (3287, 6464), (3838, 5536)]