21119700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 71245440

約数和(自身を除く): 50125740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 89, 100, 105, 113, 140, 150, 175, 178, 210, 226, 267, 300, 339, 350, 356, 420, 445, 452, 525, 534, 565, 623, 678, 700, 791, 890, 1050, 1068, 1130, 1246, 1335, 1356, 1582, 1695, 1780, 1869, 2100, 2225, 2260, 2373, 2492, 2670, 2825, 3115, 3164, 3390, 3738, 3955, 4450, 4746, 5340, 5650, 6230, 6675, 6780, 7476, 7910, 8475, 8900, 9345, 9492, 10057, 11300, 11865, 12460, 13350, 15575, 15820, 16950, 18690, 19775, 20114, 23730, 26700, 30171, 31150, 33900, 37380, 39550, 40228, 46725, 47460, 50285, 59325, 60342, 62300, 70399, 79100, 93450, 100570, 118650, 120684, 140798, 150855, 186900, 201140, 211197, 237300, 251425, 281596, 301710, 351995, 422394, 502850, 603420, 703990, 754275, 844788, 1005700, 1055985, 1407980, 1508550, 1759975, 2111970, 3017100, 3519950, 4223940, 5279925, 7039900, 10559850, 21119700]

約数ペア:

[(1, 21119700), (2, 10559850), (3, 7039900), (4, 5279925), (5, 4223940), (6, 3519950), (7, 3017100), (10, 2111970), (12, 1759975), (14, 1508550), (15, 1407980), (20, 1055985), (21, 1005700), (25, 844788), (28, 754275), (30, 703990), (35, 603420), (42, 502850), (50, 422394), (60, 351995), (70, 301710), (75, 281596), (84, 251425), (89, 237300), (100, 211197), (105, 201140), (113, 186900), (140, 150855), (150, 140798), (175, 120684), (178, 118650), (210, 100570), (226, 93450), (267, 79100), (300, 70399), (339, 62300), (350, 60342), (356, 59325), (420, 50285), (445, 47460), (452, 46725), (525, 40228), (534, 39550), (565, 37380), (623, 33900), (678, 31150), (700, 30171), (791, 26700), (890, 23730), (1050, 20114), (1068, 19775), (1130, 18690), (1246, 16950), (1335, 15820), (1356, 15575), (1582, 13350), (1695, 12460), (1780, 11865), (1869, 11300), (2100, 10057), (2225, 9492), (2260, 9345), (2373, 8900), (2492, 8475), (2670, 7910), (2825, 7476), (3115, 6780), (3164, 6675), (3390, 6230), (3738, 5650), (3955, 5340), (4450, 4746)]