20881035

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{439}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 41733120

約数和(自身を除く): 20852085

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 151, 315, 439, 453, 755, 1057, 1317, 1359, 2195, 2265, 3073, 3171, 3951, 5285, 6585, 6795, 9219, 9513, 15365, 15855, 19755, 27657, 46095, 47565, 66289, 138285, 198867, 331445, 464023, 596601, 994335, 1392069, 2320115, 2983005, 4176207, 6960345, 20881035]

約数ペア:

[(1, 20881035), (3, 6960345), (5, 4176207), (7, 2983005), (9, 2320115), (15, 1392069), (21, 994335), (35, 596601), (45, 464023), (63, 331445), (105, 198867), (151, 138285), (315, 66289), (439, 47565), (453, 46095), (755, 27657), (1057, 19755), (1317, 15855), (1359, 15365), (2195, 9513), (2265, 9219), (3073, 6795), (3171, 6585), (3951, 5285)]