19630905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 38289408

約数和(自身を除く): 18658503

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 37, 93, 105, 111, 155, 163, 185, 217, 259, 465, 489, 555, 651, 777, 815, 1085, 1141, 1147, 1295, 2445, 3255, 3423, 3441, 3885, 5053, 5705, 5735, 6031, 8029, 15159, 17115, 17205, 18093, 24087, 25265, 30155, 35371, 40145, 42217, 75795, 90465, 106113, 120435, 126651, 176855, 186961, 211085, 530565, 560883, 633255, 934805, 1308727, 2804415, 3926181, 6543635, 19630905]

約数ペア:

[(1, 19630905), (3, 6543635), (5, 3926181), (7, 2804415), (15, 1308727), (21, 934805), (31, 633255), (35, 560883), (37, 530565), (93, 211085), (105, 186961), (111, 176855), (155, 126651), (163, 120435), (185, 106113), (217, 90465), (259, 75795), (465, 42217), (489, 40145), (555, 35371), (651, 30155), (777, 25265), (815, 24087), (1085, 18093), (1141, 17205), (1147, 17115), (1295, 15159), (2445, 8029), (3255, 6031), (3423, 5735), (3441, 5705), (3885, 5053)]