21056100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5399}}^1$

素因数の和:5429

約数の個数: 72

約数和(自身を含む): 65620800

約数和(自身を除く): 44564700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5399, 10798, 16197, 21596, 26995, 32394, 53990, 64788, 70187, 80985, 107980, 134975, 140374, 161970, 210561, 269950, 280748, 323940, 350935, 404925, 421122, 539900, 701870, 809850, 842244, 1052805, 1403740, 1619700, 1754675, 2105610, 3509350, 4211220, 5264025, 7018700, 10528050, 21056100]

約数ペア:

[(1, 21056100), (2, 10528050), (3, 7018700), (4, 5264025), (5, 4211220), (6, 3509350), (10, 2105610), (12, 1754675), (13, 1619700), (15, 1403740), (20, 1052805), (25, 842244), (26, 809850), (30, 701870), (39, 539900), (50, 421122), (52, 404925), (60, 350935), (65, 323940), (75, 280748), (78, 269950), (100, 210561), (130, 161970), (150, 140374), (156, 134975), (195, 107980), (260, 80985), (300, 70187), (325, 64788), (390, 53990), (650, 32394), (780, 26995), (975, 21596), (1300, 16197), (1950, 10798), (3900, 5399)]