21009660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50023}}^1$

素因数の和:50042

約数の個数: 48

約数和(自身を含む): 67232256

約数和(自身を除く): 46222596

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50023, 100046, 150069, 200092, 250115, 300138, 350161, 500230, 600276, 700322, 750345, 1000460, 1050483, 1400644, 1500690, 1750805, 2100966, 3001380, 3501610, 4201932, 5252415, 7003220, 10504830, 21009660]

約数ペア:

[(1, 21009660), (2, 10504830), (3, 7003220), (4, 5252415), (5, 4201932), (6, 3501610), (7, 3001380), (10, 2100966), (12, 1750805), (14, 1500690), (15, 1400644), (20, 1050483), (21, 1000460), (28, 750345), (30, 700322), (35, 600276), (42, 500230), (60, 350161), (70, 300138), (84, 250115), (105, 200092), (140, 150069), (210, 100046), (420, 50023)]