21351516

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2531}}^1$

素因数の和:2594

約数の個数: 48

約数和(自身を含む): 53880960

約数和(自身を除く): 32529444

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 57, 74, 76, 111, 114, 148, 222, 228, 444, 703, 1406, 2109, 2531, 2812, 4218, 5062, 7593, 8436, 10124, 15186, 30372, 48089, 93647, 96178, 144267, 187294, 192356, 280941, 288534, 374588, 561882, 577068, 1123764, 1779293, 3558586, 5337879, 7117172, 10675758, 21351516]

約数ペア:

[(1, 21351516), (2, 10675758), (3, 7117172), (4, 5337879), (6, 3558586), (12, 1779293), (19, 1123764), (37, 577068), (38, 561882), (57, 374588), (74, 288534), (76, 280941), (111, 192356), (114, 187294), (148, 144267), (222, 96178), (228, 93647), (444, 48089), (703, 30372), (1406, 15186), (2109, 10124), (2531, 8436), (2812, 7593), (4218, 5062)]