20123835

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1489}}^1$

素因数の和:1567

約数の個数: 32

約数和(自身を含む): 34758720

約数和(自身を除く): 14634885

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 159, 255, 265, 795, 901, 1489, 2703, 4467, 4505, 7445, 13515, 22335, 25313, 75939, 78917, 126565, 236751, 379695, 394585, 1183755, 1341589, 4024767, 6707945, 20123835]

約数ペア:

[(1, 20123835), (3, 6707945), (5, 4024767), (15, 1341589), (17, 1183755), (51, 394585), (53, 379695), (85, 236751), (159, 126565), (255, 78917), (265, 75939), (795, 25313), (901, 22335), (1489, 13515), (2703, 7445), (4467, 4505)]