21227700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5443}}^1$

素因数の和:5473

約数の個数: 72

約数和(自身を含む): 66155488

約数和(自身を除く): 44927788

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, 5443, 10886, 16329, 21772, 27215, 32658, 54430, 65316, 70759, 81645, 108860, 136075, 141518, 163290, 212277, 272150, 283036, 326580, 353795, 408225, 424554, 544300, 707590, 816450, 849108, 1061385, 1415180, 1632900, 1768975, 2122770, 3537950, 4245540, 5306925, 7075900, 10613850, 21227700]

約数ペア:

[(1, 21227700), (2, 10613850), (3, 7075900), (4, 5306925), (5, 4245540), (6, 3537950), (10, 2122770), (12, 1768975), (13, 1632900), (15, 1415180), (20, 1061385), (25, 849108), (26, 816450), (30, 707590), (39, 544300), (50, 424554), (52, 408225), (60, 353795), (65, 326580), (75, 283036), (78, 272150), (100, 212277), (130, 163290), (150, 141518), (156, 136075), (195, 108860), (260, 81645), (300, 70759), (325, 65316), (390, 54430), (650, 32658), (780, 27215), (975, 21772), (1300, 16329), (1950, 10886), (3900, 5443)]