21496920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{359}}^1\times {\mathrm{499}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 64800000

約数和(自身を除く): 43303080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 359, 499, 718, 998, 1077, 1436, 1497, 1795, 1996, 2154, 2495, 2872, 2994, 3590, 3992, 4308, 4990, 5385, 5988, 7180, 7485, 8616, 9980, 10770, 11976, 14360, 14970, 19960, 21540, 29940, 43080, 59880, 179141, 358282, 537423, 716564, 895705, 1074846, 1433128, 1791410, 2149692, 2687115, 3582820, 4299384, 5374230, 7165640, 10748460, 21496920]

約数ペア:

[(1, 21496920), (2, 10748460), (3, 7165640), (4, 5374230), (5, 4299384), (6, 3582820), (8, 2687115), (10, 2149692), (12, 1791410), (15, 1433128), (20, 1074846), (24, 895705), (30, 716564), (40, 537423), (60, 358282), (120, 179141), (359, 59880), (499, 43080), (718, 29940), (998, 21540), (1077, 19960), (1436, 14970), (1497, 14360), (1795, 11976), (1996, 10770), (2154, 9980), (2495, 8616), (2872, 7485), (2994, 7180), (3590, 5988), (3992, 5385), (4308, 4990)]