21593825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 32140800

約数和(自身を除く): 10546975

約数列:

[1, 5, 11, 17, 25, 31, 55, 85, 149, 155, 187, 275, 341, 425, 527, 745, 775, 935, 1639, 1705, 2533, 2635, 3725, 4619, 4675, 5797, 8195, 8525, 12665, 13175, 23095, 27863, 28985, 40975, 50809, 63325, 78523, 115475, 139315, 144925, 254045, 392615, 696575, 863753, 1270225, 1963075, 4318765, 21593825]

約数ペア:

[(1, 21593825), (5, 4318765), (11, 1963075), (17, 1270225), (25, 863753), (31, 696575), (55, 392615), (85, 254045), (149, 144925), (155, 139315), (187, 115475), (275, 78523), (341, 63325), (425, 50809), (527, 40975), (745, 28985), (775, 27863), (935, 23095), (1639, 13175), (1705, 12665), (2533, 8525), (2635, 8195), (3725, 5797), (4619, 4675)]