21490150496

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{811}}^1$

素因数の和:1108

約数の個数: 96

約数和(自身を含む): 43756796160

約数和(自身を除く): 22266645664

約数列:

[1, 2, 4, 8, 16, 32, 71, 107, 109, 142, 214, 218, 284, 428, 436, 568, 811, 856, 872, 1136, 1622, 1712, 1744, 2272, 3244, 3424, 3488, 6488, 7597, 7739, 11663, 12976, 15194, 15478, 23326, 25952, 30388, 30956, 46652, 57581, 60776, 61912, 86777, 88399, 93304, 115162, 121552, 123824, 173554, 176798, 186608, 230324, 243104, 247648, 347108, 353596, 373216, 460648, 694216, 707192, 828073, 921296, 1388432, 1414384, 1656146, 1842592, 2776864, 2828768, 3312292, 6161167, 6276329, 6624584, 9458693, 12322334, 12552658, 13249168, 18917386, 24644668, 25105316, 26498336, 37834772, 49289336, 50210632, 75669544, 98578672, 100421264, 151339088, 197157344, 200842528, 302678176, 671567203, 1343134406, 2686268812, 5372537624, 10745075248, 21490150496]

約数ペア:

[(1, 21490150496), (2, 10745075248), (4, 5372537624), (8, 2686268812), (16, 1343134406), (32, 671567203), (71, 302678176), (107, 200842528), (109, 197157344), (142, 151339088), (214, 100421264), (218, 98578672), (284, 75669544), (428, 50210632), (436, 49289336), (568, 37834772), (811, 26498336), (856, 25105316), (872, 24644668), (1136, 18917386), (1622, 13249168), (1712, 12552658), (1744, 12322334), (2272, 9458693), (3244, 6624584), (3424, 6276329), (3488, 6161167), (6488, 3312292), (7597, 2828768), (7739, 2776864), (11663, 1842592), (12976, 1656146), (15194, 1414384), (15478, 1388432), (23326, 921296), (25952, 828073), (30388, 707192), (30956, 694216), (46652, 460648), (57581, 373216), (60776, 353596), (61912, 347108), (86777, 247648), (88399, 243104), (93304, 230324), (115162, 186608), (121552, 176798), (123824, 173554)]