21471884

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 24654196

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 79, 119, 158, 238, 316, 476, 553, 571, 1106, 1142, 1343, 2212, 2284, 2686, 3997, 5372, 7994, 9401, 9707, 15988, 18802, 19414, 37604, 38828, 45109, 67949, 90218, 135898, 180436, 271796, 315763, 631526, 766853, 1263052, 1533706, 3067412, 5367971, 10735942, 21471884]

約数ペア:

[(1, 21471884), (2, 10735942), (4, 5367971), (7, 3067412), (14, 1533706), (17, 1263052), (28, 766853), (34, 631526), (68, 315763), (79, 271796), (119, 180436), (158, 135898), (238, 90218), (316, 67949), (476, 45109), (553, 38828), (571, 37604), (1106, 19414), (1142, 18802), (1343, 15988), (2212, 9707), (2284, 9401), (2686, 7994), (3997, 5372)]