20176045911

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{787}}^1\times {\mathrm{953}}^1$

素因数の和:1821

約数の個数: 72

約数和(自身を含む): 34536990384

約数和(自身を除く): 14360944473

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 787, 953, 1281, 2361, 2859, 2989, 3843, 5509, 6671, 7083, 8577, 8967, 16527, 20013, 26901, 38563, 46697, 48007, 49581, 58133, 60039, 115689, 140091, 144021, 174399, 336049, 347067, 406931, 420273, 432063, 523197, 750011, 1008147, 1220793, 2250033, 2352343, 2848517, 3024441, 3662379, 5250077, 6750099, 7057029, 8545551, 15750231, 21171087, 25636653, 36750539, 45750671, 47250693, 110251617, 137252013, 320254697, 330754851, 411756039, 960764091, 2241782879, 2882292273, 6725348637, 20176045911]

約数ペア:

[(1, 20176045911), (3, 6725348637), (7, 2882292273), (9, 2241782879), (21, 960764091), (49, 411756039), (61, 330754851), (63, 320254697), (147, 137252013), (183, 110251617), (427, 47250693), (441, 45750671), (549, 36750539), (787, 25636653), (953, 21171087), (1281, 15750231), (2361, 8545551), (2859, 7057029), (2989, 6750099), (3843, 5250077), (5509, 3662379), (6671, 3024441), (7083, 2848517), (8577, 2352343), (8967, 2250033), (16527, 1220793), (20013, 1008147), (26901, 750011), (38563, 523197), (46697, 432063), (48007, 420273), (49581, 406931), (58133, 347067), (60039, 336049), (115689, 174399), (140091, 144021)]