21041160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{677}}^1$

素因数の和:735

約数の個数: 128

約数和(自身を含む): 74200320

約数和(自身を除く): 53159160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 677, 740, 777, 840, 888, 1036, 1110, 1295, 1354, 1480, 1554, 2031, 2072, 2220, 2590, 2708, 3108, 3385, 3885, 4062, 4440, 4739, 5180, 5416, 6216, 6770, 7770, 8124, 9478, 10155, 10360, 13540, 14217, 15540, 16248, 18956, 20310, 23695, 25049, 27080, 28434, 31080, 37912, 40620, 47390, 50098, 56868, 71085, 75147, 81240, 94780, 100196, 113736, 125245, 142170, 150294, 175343, 189560, 200392, 250490, 284340, 300588, 350686, 375735, 500980, 526029, 568680, 601176, 701372, 751470, 876715, 1001960, 1052058, 1402744, 1502940, 1753430, 2104116, 2630145, 3005880, 3506860, 4208232, 5260290, 7013720, 10520580, 21041160]

約数ペア:

[(1, 21041160), (2, 10520580), (3, 7013720), (4, 5260290), (5, 4208232), (6, 3506860), (7, 3005880), (8, 2630145), (10, 2104116), (12, 1753430), (14, 1502940), (15, 1402744), (20, 1052058), (21, 1001960), (24, 876715), (28, 751470), (30, 701372), (35, 601176), (37, 568680), (40, 526029), (42, 500980), (56, 375735), (60, 350686), (70, 300588), (74, 284340), (84, 250490), (105, 200392), (111, 189560), (120, 175343), (140, 150294), (148, 142170), (168, 125245), (185, 113736), (210, 100196), (222, 94780), (259, 81240), (280, 75147), (296, 71085), (370, 56868), (420, 50098), (444, 47390), (518, 40620), (555, 37912), (677, 31080), (740, 28434), (777, 27080), (840, 25049), (888, 23695), (1036, 20310), (1110, 18956), (1295, 16248), (1354, 15540), (1480, 14217), (1554, 13540), (2031, 10360), (2072, 10155), (2220, 9478), (2590, 8124), (2708, 7770), (3108, 6770), (3385, 6216), (3885, 5416), (4062, 5180), (4440, 4739)]