21930516

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 58682624

約数和(自身を除く): 36752108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 43, 62, 86, 93, 124, 129, 172, 186, 258, 279, 372, 387, 457, 516, 558, 774, 914, 1116, 1333, 1371, 1548, 1828, 2666, 2742, 3999, 4113, 5332, 5484, 7998, 8226, 11997, 14167, 15996, 16452, 19651, 23994, 28334, 39302, 42501, 47988, 56668, 58953, 78604, 85002, 117906, 127503, 170004, 176859, 235812, 255006, 353718, 510012, 609181, 707436, 1218362, 1827543, 2436724, 3655086, 5482629, 7310172, 10965258, 21930516]

約数ペア:

[(1, 21930516), (2, 10965258), (3, 7310172), (4, 5482629), (6, 3655086), (9, 2436724), (12, 1827543), (18, 1218362), (31, 707436), (36, 609181), (43, 510012), (62, 353718), (86, 255006), (93, 235812), (124, 176859), (129, 170004), (172, 127503), (186, 117906), (258, 85002), (279, 78604), (372, 58953), (387, 56668), (457, 47988), (516, 42501), (558, 39302), (774, 28334), (914, 23994), (1116, 19651), (1333, 16452), (1371, 15996), (1548, 14167), (1828, 11997), (2666, 8226), (2742, 7998), (3999, 5484), (4113, 5332)]