21626930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 43006464

約数和(自身を除く): 21379534

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 169, 191, 335, 338, 382, 670, 845, 871, 955, 1690, 1742, 1910, 2483, 4355, 4966, 8710, 11323, 12415, 12797, 22646, 24830, 25594, 32279, 56615, 63985, 64558, 113230, 127970, 161395, 166361, 322790, 332722, 831805, 1663610, 2162693, 4325386, 10813465, 21626930]

約数ペア:

[(1, 21626930), (2, 10813465), (5, 4325386), (10, 2162693), (13, 1663610), (26, 831805), (65, 332722), (67, 322790), (130, 166361), (134, 161395), (169, 127970), (191, 113230), (335, 64558), (338, 63985), (382, 56615), (670, 32279), (845, 25594), (871, 24830), (955, 22646), (1690, 12797), (1742, 12415), (1910, 11323), (2483, 8710), (4355, 4966)]