21430305

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12211}}^1$

素因数の和:12238

約数の個数: 32

約数和(自身を含む): 41032320

約数和(自身を除く): 19602015

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12211, 36633, 61055, 109899, 158743, 183165, 329697, 476229, 549495, 793715, 1428687, 1648485, 2381145, 4286061, 7143435, 21430305]

約数ペア:

[(1, 21430305), (3, 7143435), (5, 4286061), (9, 2381145), (13, 1648485), (15, 1428687), (27, 793715), (39, 549495), (45, 476229), (65, 329697), (117, 183165), (135, 158743), (195, 109899), (351, 61055), (585, 36633), (1755, 12211)]