20171309571

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{15313}}^1$

素因数の和:15465

約数の個数: 72

約数和(自身を含む): 35404742880

約数和(自身を除く): 15233433309

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 103, 147, 203, 261, 309, 441, 609, 721, 927, 1421, 1827, 2163, 2987, 4263, 5047, 6489, 8961, 12789, 15141, 15313, 20909, 26883, 45423, 45939, 62727, 107191, 137817, 146363, 188181, 321573, 439089, 444077, 750337, 964719, 1317267, 1332231, 1577239, 2251011, 3108539, 3996693, 4731717, 6753033, 9325617, 11040673, 14195151, 21759773, 27976851, 33122019, 45739931, 65279319, 77284711, 99366057, 137219793, 195837957, 231854133, 320179517, 411659379, 695562399, 960538551, 2241256619, 2881615653, 6723769857, 20171309571]

約数ペア:

[(1, 20171309571), (3, 6723769857), (7, 2881615653), (9, 2241256619), (21, 960538551), (29, 695562399), (49, 411659379), (63, 320179517), (87, 231854133), (103, 195837957), (147, 137219793), (203, 99366057), (261, 77284711), (309, 65279319), (441, 45739931), (609, 33122019), (721, 27976851), (927, 21759773), (1421, 14195151), (1827, 11040673), (2163, 9325617), (2987, 6753033), (4263, 4731717), (5047, 3996693), (6489, 3108539), (8961, 2251011), (12789, 1577239), (15141, 1332231), (15313, 1317267), (20909, 964719), (26883, 750337), (45423, 444077), (45939, 439089), (62727, 321573), (107191, 188181), (137817, 146363)]