21893270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 25384810

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 79, 107, 158, 185, 214, 259, 370, 395, 518, 535, 553, 749, 790, 1070, 1106, 1295, 1498, 2590, 2765, 2923, 3745, 3959, 5530, 5846, 7490, 7918, 8453, 14615, 16906, 19795, 20461, 27713, 29230, 39590, 40922, 42265, 55426, 59171, 84530, 102305, 118342, 138565, 204610, 277130, 295855, 312761, 591710, 625522, 1563805, 2189327, 3127610, 4378654, 10946635, 21893270]

約数ペア:

[(1, 21893270), (2, 10946635), (5, 4378654), (7, 3127610), (10, 2189327), (14, 1563805), (35, 625522), (37, 591710), (70, 312761), (74, 295855), (79, 277130), (107, 204610), (158, 138565), (185, 118342), (214, 102305), (259, 84530), (370, 59171), (395, 55426), (518, 42265), (535, 40922), (553, 39590), (749, 29230), (790, 27713), (1070, 20461), (1106, 19795), (1295, 16906), (1498, 14615), (2590, 8453), (2765, 7918), (2923, 7490), (3745, 5846), (3959, 5530)]