21095880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13523}}^1$

素因数の和:13550

約数の個数: 64

約数和(自身を含む): 68160960

約数和(自身を除く): 47065080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13523, 27046, 40569, 54092, 67615, 81138, 108184, 135230, 162276, 175799, 202845, 270460, 324552, 351598, 405690, 527397, 540920, 703196, 811380, 878995, 1054794, 1406392, 1622760, 1757990, 2109588, 2636985, 3515980, 4219176, 5273970, 7031960, 10547940, 21095880]

約数ペア:

[(1, 21095880), (2, 10547940), (3, 7031960), (4, 5273970), (5, 4219176), (6, 3515980), (8, 2636985), (10, 2109588), (12, 1757990), (13, 1622760), (15, 1406392), (20, 1054794), (24, 878995), (26, 811380), (30, 703196), (39, 540920), (40, 527397), (52, 405690), (60, 351598), (65, 324552), (78, 270460), (104, 202845), (120, 175799), (130, 162276), (156, 135230), (195, 108184), (260, 81138), (312, 67615), (390, 54092), (520, 40569), (780, 27046), (1560, 13523)]