18912658648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3431179}}^1$

素因数の和:3431251

約数の個数: 32

約数和(自身を含む): 38909581200

約数和(自身を除く): 19996922552

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 5512, 3431179, 6862358, 13724716, 27449432, 44605327, 89210654, 178421308, 181852487, 356842616, 363704974, 727409948, 1454819896, 2364082331, 4728164662, 9456329324, 18912658648]

約数ペア:

[(1, 18912658648), (2, 9456329324), (4, 4728164662), (8, 2364082331), (13, 1454819896), (26, 727409948), (52, 363704974), (53, 356842616), (104, 181852487), (106, 178421308), (212, 89210654), (424, 44605327), (689, 27449432), (1378, 13724716), (2756, 6862358), (5512, 3431179)]