21001260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1613}}^1$

素因数の和:1663

約数の個数: 96

約数和(自身を含む): 69414912

約数和(自身を除く): 48413652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1613, 1860, 2170, 2604, 3226, 3255, 4340, 4839, 6452, 6510, 8065, 9678, 11291, 13020, 16130, 19356, 22582, 24195, 32260, 33873, 45164, 48390, 50003, 56455, 67746, 96780, 100006, 112910, 135492, 150009, 169365, 200012, 225820, 250015, 300018, 338730, 350021, 500030, 600036, 677460, 700042, 750045, 1000060, 1050063, 1400084, 1500090, 1750105, 2100126, 3000180, 3500210, 4200252, 5250315, 7000420, 10500630, 21001260]

約数ペア:

[(1, 21001260), (2, 10500630), (3, 7000420), (4, 5250315), (5, 4200252), (6, 3500210), (7, 3000180), (10, 2100126), (12, 1750105), (14, 1500090), (15, 1400084), (20, 1050063), (21, 1000060), (28, 750045), (30, 700042), (31, 677460), (35, 600036), (42, 500030), (60, 350021), (62, 338730), (70, 300018), (84, 250015), (93, 225820), (105, 200012), (124, 169365), (140, 150009), (155, 135492), (186, 112910), (210, 100006), (217, 96780), (310, 67746), (372, 56455), (420, 50003), (434, 48390), (465, 45164), (620, 33873), (651, 32260), (868, 24195), (930, 22582), (1085, 19356), (1302, 16130), (1613, 13020), (1860, 11291), (2170, 9678), (2604, 8065), (3226, 6510), (3255, 6452), (4340, 4839)]