19166355

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 37470720

約数和(自身を除く): 18304365

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 67, 117, 135, 163, 195, 201, 335, 351, 489, 585, 603, 815, 871, 1005, 1467, 1755, 1809, 2119, 2445, 2613, 3015, 4355, 4401, 6357, 7335, 7839, 9045, 10595, 10921, 13065, 19071, 22005, 23517, 31785, 32763, 39195, 54605, 57213, 95355, 98289, 117585, 141973, 163815, 286065, 294867, 425919, 491445, 709865, 1277757, 1474335, 2129595, 3833271, 6388785, 19166355]

約数ペア:

[(1, 19166355), (3, 6388785), (5, 3833271), (9, 2129595), (13, 1474335), (15, 1277757), (27, 709865), (39, 491445), (45, 425919), (65, 294867), (67, 286065), (117, 163815), (135, 141973), (163, 117585), (195, 98289), (201, 95355), (335, 57213), (351, 54605), (489, 39195), (585, 32763), (603, 31785), (815, 23517), (871, 22005), (1005, 19071), (1467, 13065), (1755, 10921), (1809, 10595), (2119, 9045), (2445, 7839), (2613, 7335), (3015, 6357), (4355, 4401)]