21460288

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:335

約数の個数: 56

約数和(自身を含む): 45354240

約数和(自身を除く): 23893952

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 61, 64, 92, 122, 184, 239, 244, 368, 478, 488, 736, 956, 976, 1403, 1472, 1912, 1952, 2806, 3824, 3904, 5497, 5612, 7648, 10994, 11224, 14579, 15296, 21988, 22448, 29158, 43976, 44896, 58316, 87952, 89792, 116632, 175904, 233264, 335317, 351808, 466528, 670634, 933056, 1341268, 2682536, 5365072, 10730144, 21460288]

約数ペア:

[(1, 21460288), (2, 10730144), (4, 5365072), (8, 2682536), (16, 1341268), (23, 933056), (32, 670634), (46, 466528), (61, 351808), (64, 335317), (92, 233264), (122, 175904), (184, 116632), (239, 89792), (244, 87952), (368, 58316), (478, 44896), (488, 43976), (736, 29158), (956, 22448), (976, 21988), (1403, 15296), (1472, 14579), (1912, 11224), (1952, 10994), (2806, 7648), (3824, 5612), (3904, 5497)]