21269115

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 43960320

約数和(自身を除く): 22691205

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 71, 105, 135, 189, 213, 315, 317, 355, 497, 639, 945, 951, 1065, 1491, 1585, 1917, 2219, 2485, 2853, 3195, 4473, 4755, 6657, 7455, 8559, 9585, 11095, 13419, 14265, 19971, 22365, 22507, 33285, 42795, 59913, 67095, 67521, 99855, 112535, 157549, 202563, 299565, 337605, 472647, 607689, 787745, 1012815, 1417941, 2363235, 3038445, 4253823, 7089705, 21269115]

約数ペア:

[(1, 21269115), (3, 7089705), (5, 4253823), (7, 3038445), (9, 2363235), (15, 1417941), (21, 1012815), (27, 787745), (35, 607689), (45, 472647), (63, 337605), (71, 299565), (105, 202563), (135, 157549), (189, 112535), (213, 99855), (315, 67521), (317, 67095), (355, 59913), (497, 42795), (639, 33285), (945, 22507), (951, 22365), (1065, 19971), (1491, 14265), (1585, 13419), (1917, 11095), (2219, 9585), (2485, 8559), (2853, 7455), (3195, 6657), (4473, 4755)]