21631545

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 40884480

約数和(自身を除く): 19252935

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 103, 117, 195, 309, 359, 515, 585, 927, 1077, 1339, 1545, 1795, 3231, 4017, 4635, 4667, 5385, 6695, 12051, 14001, 16155, 20085, 23335, 36977, 42003, 60255, 70005, 110931, 184885, 210015, 332793, 480701, 554655, 1442103, 1663965, 2403505, 4326309, 7210515, 21631545]

約数ペア:

[(1, 21631545), (3, 7210515), (5, 4326309), (9, 2403505), (13, 1663965), (15, 1442103), (39, 554655), (45, 480701), (65, 332793), (103, 210015), (117, 184885), (195, 110931), (309, 70005), (359, 60255), (515, 42003), (585, 36977), (927, 23335), (1077, 20085), (1339, 16155), (1545, 14001), (1795, 12051), (3231, 6695), (4017, 5385), (4635, 4667)]