21064500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:207

約数の個数: 144

約数和(自身を含む): 69049344

約数和(自身を除く): 47984844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 31, 36, 45, 50, 60, 62, 75, 90, 93, 100, 124, 125, 150, 151, 155, 180, 186, 225, 250, 279, 300, 302, 310, 372, 375, 450, 453, 465, 500, 558, 604, 620, 750, 755, 775, 900, 906, 930, 1116, 1125, 1359, 1395, 1500, 1510, 1550, 1812, 1860, 2250, 2265, 2325, 2718, 2790, 3020, 3100, 3775, 3875, 4500, 4530, 4650, 4681, 5436, 5580, 6795, 6975, 7550, 7750, 9060, 9300, 9362, 11325, 11625, 13590, 13950, 14043, 15100, 15500, 18724, 18875, 22650, 23250, 23405, 27180, 27900, 28086, 33975, 34875, 37750, 42129, 45300, 46500, 46810, 56172, 56625, 67950, 69750, 70215, 75500, 84258, 93620, 113250, 117025, 135900, 139500, 140430, 168516, 169875, 210645, 226500, 234050, 280860, 339750, 351075, 421290, 468100, 585125, 679500, 702150, 842580, 1053225, 1170250, 1404300, 1755375, 2106450, 2340500, 3510750, 4212900, 5266125, 7021500, 10532250, 21064500]

約数ペア:

[(1, 21064500), (2, 10532250), (3, 7021500), (4, 5266125), (5, 4212900), (6, 3510750), (9, 2340500), (10, 2106450), (12, 1755375), (15, 1404300), (18, 1170250), (20, 1053225), (25, 842580), (30, 702150), (31, 679500), (36, 585125), (45, 468100), (50, 421290), (60, 351075), (62, 339750), (75, 280860), (90, 234050), (93, 226500), (100, 210645), (124, 169875), (125, 168516), (150, 140430), (151, 139500), (155, 135900), (180, 117025), (186, 113250), (225, 93620), (250, 84258), (279, 75500), (300, 70215), (302, 69750), (310, 67950), (372, 56625), (375, 56172), (450, 46810), (453, 46500), (465, 45300), (500, 42129), (558, 37750), (604, 34875), (620, 33975), (750, 28086), (755, 27900), (775, 27180), (900, 23405), (906, 23250), (930, 22650), (1116, 18875), (1125, 18724), (1359, 15500), (1395, 15100), (1500, 14043), (1510, 13950), (1550, 13590), (1812, 11625), (1860, 11325), (2250, 9362), (2265, 9300), (2325, 9060), (2718, 7750), (2790, 7550), (3020, 6975), (3100, 6795), (3775, 5580), (3875, 5436), (4500, 4681), (4530, 4650)]