19521525

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 34872768

約数和(自身を除く): 15351243

約数列:

[1, 3, 5, 15, 17, 25, 51, 61, 75, 85, 183, 251, 255, 305, 425, 753, 915, 1037, 1255, 1275, 1525, 3111, 3765, 4267, 4575, 5185, 6275, 12801, 15311, 15555, 18825, 21335, 25925, 45933, 64005, 76555, 77775, 106675, 229665, 260287, 320025, 382775, 780861, 1148325, 1301435, 3904305, 6507175, 19521525]

約数ペア:

[(1, 19521525), (3, 6507175), (5, 3904305), (15, 1301435), (17, 1148325), (25, 780861), (51, 382775), (61, 320025), (75, 260287), (85, 229665), (183, 106675), (251, 77775), (255, 76555), (305, 64005), (425, 45933), (753, 25925), (915, 21335), (1037, 18825), (1255, 15555), (1275, 15311), (1525, 12801), (3111, 6275), (3765, 5185), (4267, 4575)]