21371400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:436

約数の個数: 144

約数和(自身を含む): 74280960

約数和(自身を除く): 52909560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 31, 36, 40, 45, 50, 60, 62, 72, 75, 90, 93, 100, 120, 124, 150, 155, 180, 186, 200, 225, 248, 279, 300, 310, 360, 372, 383, 450, 465, 558, 600, 620, 744, 766, 775, 900, 930, 1116, 1149, 1240, 1395, 1532, 1550, 1800, 1860, 1915, 2232, 2298, 2325, 2790, 3064, 3100, 3447, 3720, 3830, 4596, 4650, 5580, 5745, 6200, 6894, 6975, 7660, 9192, 9300, 9575, 11160, 11490, 11873, 13788, 13950, 15320, 17235, 18600, 19150, 22980, 23746, 27576, 27900, 28725, 34470, 35619, 38300, 45960, 47492, 55800, 57450, 59365, 68940, 71238, 76600, 86175, 94984, 106857, 114900, 118730, 137880, 142476, 172350, 178095, 213714, 229800, 237460, 284952, 296825, 344700, 356190, 427428, 474920, 534285, 593650, 689400, 712380, 854856, 890475, 1068570, 1187300, 1424760, 1780950, 2137140, 2374600, 2671425, 3561900, 4274280, 5342850, 7123800, 10685700, 21371400]

約数ペア:

[(1, 21371400), (2, 10685700), (3, 7123800), (4, 5342850), (5, 4274280), (6, 3561900), (8, 2671425), (9, 2374600), (10, 2137140), (12, 1780950), (15, 1424760), (18, 1187300), (20, 1068570), (24, 890475), (25, 854856), (30, 712380), (31, 689400), (36, 593650), (40, 534285), (45, 474920), (50, 427428), (60, 356190), (62, 344700), (72, 296825), (75, 284952), (90, 237460), (93, 229800), (100, 213714), (120, 178095), (124, 172350), (150, 142476), (155, 137880), (180, 118730), (186, 114900), (200, 106857), (225, 94984), (248, 86175), (279, 76600), (300, 71238), (310, 68940), (360, 59365), (372, 57450), (383, 55800), (450, 47492), (465, 45960), (558, 38300), (600, 35619), (620, 34470), (744, 28725), (766, 27900), (775, 27576), (900, 23746), (930, 22980), (1116, 19150), (1149, 18600), (1240, 17235), (1395, 15320), (1532, 13950), (1550, 13788), (1800, 11873), (1860, 11490), (1915, 11160), (2232, 9575), (2298, 9300), (2325, 9192), (2790, 7660), (3064, 6975), (3100, 6894), (3447, 6200), (3720, 5745), (3830, 5580), (4596, 4650)]