21140730

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 64108800

約数和(自身を除く): 42968070

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 27, 30, 38, 39, 45, 54, 57, 65, 78, 90, 95, 114, 117, 130, 135, 171, 190, 195, 234, 247, 270, 285, 317, 342, 351, 390, 494, 513, 570, 585, 634, 702, 741, 855, 951, 1026, 1170, 1235, 1482, 1585, 1710, 1755, 1902, 2223, 2470, 2565, 2853, 3170, 3510, 3705, 4121, 4446, 4755, 5130, 5706, 6023, 6669, 7410, 8242, 8559, 9510, 11115, 12046, 12363, 13338, 14265, 17118, 18069, 20605, 22230, 24726, 28530, 30115, 33345, 36138, 37089, 41210, 42795, 54207, 60230, 61815, 66690, 74178, 78299, 85590, 90345, 108414, 111267, 123630, 156598, 162621, 180690, 185445, 222534, 234897, 271035, 325242, 370890, 391495, 469794, 542070, 556335, 704691, 782990, 813105, 1112670, 1174485, 1409382, 1626210, 2114073, 2348970, 3523455, 4228146, 7046910, 10570365, 21140730]

約数ペア:

[(1, 21140730), (2, 10570365), (3, 7046910), (5, 4228146), (6, 3523455), (9, 2348970), (10, 2114073), (13, 1626210), (15, 1409382), (18, 1174485), (19, 1112670), (26, 813105), (27, 782990), (30, 704691), (38, 556335), (39, 542070), (45, 469794), (54, 391495), (57, 370890), (65, 325242), (78, 271035), (90, 234897), (95, 222534), (114, 185445), (117, 180690), (130, 162621), (135, 156598), (171, 123630), (190, 111267), (195, 108414), (234, 90345), (247, 85590), (270, 78299), (285, 74178), (317, 66690), (342, 61815), (351, 60230), (390, 54207), (494, 42795), (513, 41210), (570, 37089), (585, 36138), (634, 33345), (702, 30115), (741, 28530), (855, 24726), (951, 22230), (1026, 20605), (1170, 18069), (1235, 17118), (1482, 14265), (1585, 13338), (1710, 12363), (1755, 12046), (1902, 11115), (2223, 9510), (2470, 8559), (2565, 8242), (2853, 7410), (3170, 6669), (3510, 6023), (3705, 5706), (4121, 5130), (4446, 4755)]