21883675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 32569344

約数和(自身を除く): 10685669

約数列:

[1, 5, 11, 17, 25, 31, 55, 85, 151, 155, 187, 275, 341, 425, 527, 755, 775, 935, 1661, 1705, 2567, 2635, 3775, 4675, 4681, 5797, 8305, 8525, 12835, 13175, 23405, 28237, 28985, 41525, 51491, 64175, 79577, 117025, 141185, 144925, 257455, 397885, 705925, 875347, 1287275, 1989425, 4376735, 21883675]

約数ペア:

[(1, 21883675), (5, 4376735), (11, 1989425), (17, 1287275), (25, 875347), (31, 705925), (55, 397885), (85, 257455), (151, 144925), (155, 141185), (187, 117025), (275, 79577), (341, 64175), (425, 51491), (527, 41525), (755, 28985), (775, 28237), (935, 23405), (1661, 13175), (1705, 12835), (2567, 8525), (2635, 8305), (3775, 5797), (4675, 4681)]