21798120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{487}}^1$

素因数の和:874

約数の個数: 64

約数和(自身を含む): 65704320

約数和(自身を除く): 43906200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 373, 487, 746, 974, 1119, 1461, 1492, 1865, 1948, 2238, 2435, 2922, 2984, 3730, 3896, 4476, 4870, 5595, 5844, 7305, 7460, 8952, 9740, 11190, 11688, 14610, 14920, 19480, 22380, 29220, 44760, 58440, 181651, 363302, 544953, 726604, 908255, 1089906, 1453208, 1816510, 2179812, 2724765, 3633020, 4359624, 5449530, 7266040, 10899060, 21798120]

約数ペア:

[(1, 21798120), (2, 10899060), (3, 7266040), (4, 5449530), (5, 4359624), (6, 3633020), (8, 2724765), (10, 2179812), (12, 1816510), (15, 1453208), (20, 1089906), (24, 908255), (30, 726604), (40, 544953), (60, 363302), (120, 181651), (373, 58440), (487, 44760), (746, 29220), (974, 22380), (1119, 19480), (1461, 14920), (1492, 14610), (1865, 11688), (1948, 11190), (2238, 9740), (2435, 8952), (2922, 7460), (2984, 7305), (3730, 5844), (3896, 5595), (4476, 4870)]