21791700

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{1153}}^1$

素因数の和:1183

約数の個数: 144

約数和(自身を含む): 80133760

約数和(自身を除く): 58342060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 84, 90, 100, 105, 108, 126, 135, 140, 150, 175, 180, 189, 210, 225, 252, 270, 300, 315, 350, 378, 420, 450, 525, 540, 630, 675, 700, 756, 900, 945, 1050, 1153, 1260, 1350, 1575, 1890, 2100, 2306, 2700, 3150, 3459, 3780, 4612, 4725, 5765, 6300, 6918, 8071, 9450, 10377, 11530, 13836, 16142, 17295, 18900, 20754, 23060, 24213, 28825, 31131, 32284, 34590, 40355, 41508, 48426, 51885, 57650, 62262, 69180, 72639, 80710, 86475, 96852, 103770, 115300, 121065, 124524, 145278, 155655, 161420, 172950, 201775, 207540, 217917, 242130, 259425, 290556, 311310, 345900, 363195, 403550, 435834, 484260, 518850, 605325, 622620, 726390, 778275, 807100, 871668, 1037700, 1089585, 1210650, 1452780, 1556550, 1815975, 2179170, 2421300, 3113100, 3631950, 4358340, 5447925, 7263900, 10895850, 21791700]

約数ペア:

[(1, 21791700), (2, 10895850), (3, 7263900), (4, 5447925), (5, 4358340), (6, 3631950), (7, 3113100), (9, 2421300), (10, 2179170), (12, 1815975), (14, 1556550), (15, 1452780), (18, 1210650), (20, 1089585), (21, 1037700), (25, 871668), (27, 807100), (28, 778275), (30, 726390), (35, 622620), (36, 605325), (42, 518850), (45, 484260), (50, 435834), (54, 403550), (60, 363195), (63, 345900), (70, 311310), (75, 290556), (84, 259425), (90, 242130), (100, 217917), (105, 207540), (108, 201775), (126, 172950), (135, 161420), (140, 155655), (150, 145278), (175, 124524), (180, 121065), (189, 115300), (210, 103770), (225, 96852), (252, 86475), (270, 80710), (300, 72639), (315, 69180), (350, 62262), (378, 57650), (420, 51885), (450, 48426), (525, 41508), (540, 40355), (630, 34590), (675, 32284), (700, 31131), (756, 28825), (900, 24213), (945, 23060), (1050, 20754), (1153, 18900), (1260, 17295), (1350, 16142), (1575, 13836), (1890, 11530), (2100, 10377), (2306, 9450), (2700, 8071), (3150, 6918), (3459, 6300), (3780, 5765), (4612, 4725)]