19736728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 23808872

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 79, 88, 136, 158, 167, 187, 316, 334, 374, 632, 668, 748, 869, 1336, 1343, 1496, 1738, 1837, 2686, 2839, 3476, 3674, 5372, 5678, 6952, 7348, 10744, 11356, 13193, 14696, 14773, 22712, 26386, 29546, 31229, 52772, 59092, 62458, 105544, 118184, 124916, 145123, 224281, 249832, 290246, 448562, 580492, 897124, 1160984, 1794248, 2467091, 4934182, 9868364, 19736728]

約数ペア:

[(1, 19736728), (2, 9868364), (4, 4934182), (8, 2467091), (11, 1794248), (17, 1160984), (22, 897124), (34, 580492), (44, 448562), (68, 290246), (79, 249832), (88, 224281), (136, 145123), (158, 124916), (167, 118184), (187, 105544), (316, 62458), (334, 59092), (374, 52772), (632, 31229), (668, 29546), (748, 26386), (869, 22712), (1336, 14773), (1343, 14696), (1496, 13193), (1738, 11356), (1837, 10744), (2686, 7348), (2839, 6952), (3476, 5678), (3674, 5372)]