21016260

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12973}}^1$

素因数の和:12994

約数の個数: 60

約数和(自身を含む): 65933868

約数和(自身を除く): 44917608

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12973, 25946, 38919, 51892, 64865, 77838, 116757, 129730, 155676, 194595, 233514, 259460, 350271, 389190, 467028, 583785, 700542, 778380, 1050813, 1167570, 1401084, 1751355, 2101626, 2335140, 3502710, 4203252, 5254065, 7005420, 10508130, 21016260]

約数ペア:

[(1, 21016260), (2, 10508130), (3, 7005420), (4, 5254065), (5, 4203252), (6, 3502710), (9, 2335140), (10, 2101626), (12, 1751355), (15, 1401084), (18, 1167570), (20, 1050813), (27, 778380), (30, 700542), (36, 583785), (45, 467028), (54, 389190), (60, 350271), (81, 259460), (90, 233514), (108, 194595), (135, 155676), (162, 129730), (180, 116757), (270, 77838), (324, 64865), (405, 51892), (540, 38919), (810, 25946), (1620, 12973)]