16821420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{331}}^1$

素因数の和:372

約数の個数: 144

約数和(自身を含む): 59345664

約数和(自身を除く): 42524244

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 331, 363, 385, 420, 462, 484, 605, 660, 662, 726, 770, 847, 924, 993, 1155, 1210, 1324, 1452, 1540, 1655, 1694, 1815, 1986, 2310, 2317, 2420, 2541, 3310, 3388, 3630, 3641, 3972, 4235, 4620, 4634, 4965, 5082, 6620, 6951, 7260, 7282, 8470, 9268, 9930, 10164, 10923, 11585, 12705, 13902, 14564, 16940, 18205, 19860, 21846, 23170, 25410, 25487, 27804, 34755, 36410, 40051, 43692, 46340, 50820, 50974, 54615, 69510, 72820, 76461, 80102, 101948, 109230, 120153, 127435, 139020, 152922, 160204, 200255, 218460, 240306, 254870, 280357, 305844, 382305, 400510, 480612, 509740, 560714, 600765, 764610, 801020, 841071, 1121428, 1201530, 1401785, 1529220, 1682142, 2403060, 2803570, 3364284, 4205355, 5607140, 8410710, 16821420]

約数ペア:

[(1, 16821420), (2, 8410710), (3, 5607140), (4, 4205355), (5, 3364284), (6, 2803570), (7, 2403060), (10, 1682142), (11, 1529220), (12, 1401785), (14, 1201530), (15, 1121428), (20, 841071), (21, 801020), (22, 764610), (28, 600765), (30, 560714), (33, 509740), (35, 480612), (42, 400510), (44, 382305), (55, 305844), (60, 280357), (66, 254870), (70, 240306), (77, 218460), (84, 200255), (105, 160204), (110, 152922), (121, 139020), (132, 127435), (140, 120153), (154, 109230), (165, 101948), (210, 80102), (220, 76461), (231, 72820), (242, 69510), (308, 54615), (330, 50974), (331, 50820), (363, 46340), (385, 43692), (420, 40051), (462, 36410), (484, 34755), (605, 27804), (660, 25487), (662, 25410), (726, 23170), (770, 21846), (847, 19860), (924, 18205), (993, 16940), (1155, 14564), (1210, 13902), (1324, 12705), (1452, 11585), (1540, 10923), (1655, 10164), (1694, 9930), (1815, 9268), (1986, 8470), (2310, 7282), (2317, 7260), (2420, 6951), (2541, 6620), (3310, 5082), (3388, 4965), (3630, 4634), (3641, 4620), (3972, 4235)]