218312925

素因数分解:

$3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{21247}}^1$

素因数の和:21397

約数の個数: 24

約数和(自身を含む): 363595776

約数和(自身を除く): 145282851

約数列:

[1, 3, 5, 15, 25, 75, 137, 411, 685, 2055, 3425, 10275, 21247, 63741, 106235, 318705, 531175, 1593525, 2910839, 8732517, 14554195, 43662585, 72770975, 218312925]

約数ペア:

[(1, 218312925), (3, 72770975), (5, 43662585), (15, 14554195), (25, 8732517), (75, 2910839), (137, 1593525), (411, 531175), (685, 318705), (2055, 106235), (3425, 63741), (10275, 21247)]