21706500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:550

約数の個数: 96

約数和(自身を含む): 65520000

約数和(自身を除く): 43813500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 29, 30, 50, 58, 60, 75, 87, 100, 116, 125, 145, 150, 174, 250, 290, 300, 348, 375, 435, 499, 500, 580, 725, 750, 870, 998, 1450, 1497, 1500, 1740, 1996, 2175, 2495, 2900, 2994, 3625, 4350, 4990, 5988, 7250, 7485, 8700, 9980, 10875, 12475, 14471, 14500, 14970, 21750, 24950, 28942, 29940, 37425, 43413, 43500, 49900, 57884, 62375, 72355, 74850, 86826, 124750, 144710, 149700, 173652, 187125, 217065, 249500, 289420, 361775, 374250, 434130, 723550, 748500, 868260, 1085325, 1447100, 1808875, 2170650, 3617750, 4341300, 5426625, 7235500, 10853250, 21706500]

約数ペア:

[(1, 21706500), (2, 10853250), (3, 7235500), (4, 5426625), (5, 4341300), (6, 3617750), (10, 2170650), (12, 1808875), (15, 1447100), (20, 1085325), (25, 868260), (29, 748500), (30, 723550), (50, 434130), (58, 374250), (60, 361775), (75, 289420), (87, 249500), (100, 217065), (116, 187125), (125, 173652), (145, 149700), (150, 144710), (174, 124750), (250, 86826), (290, 74850), (300, 72355), (348, 62375), (375, 57884), (435, 49900), (499, 43500), (500, 43413), (580, 37425), (725, 29940), (750, 28942), (870, 24950), (998, 21750), (1450, 14970), (1497, 14500), (1500, 14471), (1740, 12475), (1996, 10875), (2175, 9980), (2495, 8700), (2900, 7485), (2994, 7250), (3625, 5988), (4350, 4990)]