21620196

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 64209600

約数和(自身を除く): 42589404

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 29, 36, 39, 52, 54, 58, 59, 78, 81, 87, 108, 116, 117, 118, 156, 162, 174, 177, 234, 236, 243, 261, 324, 348, 351, 354, 377, 468, 486, 522, 531, 702, 708, 754, 767, 783, 972, 1044, 1053, 1062, 1131, 1404, 1508, 1534, 1566, 1593, 1711, 2106, 2124, 2262, 2301, 2349, 3068, 3132, 3159, 3186, 3393, 3422, 4212, 4524, 4602, 4698, 4779, 5133, 6318, 6372, 6786, 6844, 6903, 7047, 9204, 9396, 9558, 10179, 10266, 12636, 13572, 13806, 14094, 14337, 15399, 19116, 20358, 20532, 20709, 22243, 27612, 28188, 28674, 30537, 30798, 40716, 41418, 44486, 46197, 57348, 61074, 61596, 62127, 66729, 82836, 88972, 91611, 92394, 122148, 124254, 133458, 138591, 183222, 184788, 186381, 200187, 248508, 266916, 277182, 366444, 372762, 400374, 415773, 554364, 600561, 745524, 800748, 831546, 1201122, 1663092, 1801683, 2402244, 3603366, 5405049, 7206732, 10810098, 21620196]

約数ペア:

[(1, 21620196), (2, 10810098), (3, 7206732), (4, 5405049), (6, 3603366), (9, 2402244), (12, 1801683), (13, 1663092), (18, 1201122), (26, 831546), (27, 800748), (29, 745524), (36, 600561), (39, 554364), (52, 415773), (54, 400374), (58, 372762), (59, 366444), (78, 277182), (81, 266916), (87, 248508), (108, 200187), (116, 186381), (117, 184788), (118, 183222), (156, 138591), (162, 133458), (174, 124254), (177, 122148), (234, 92394), (236, 91611), (243, 88972), (261, 82836), (324, 66729), (348, 62127), (351, 61596), (354, 61074), (377, 57348), (468, 46197), (486, 44486), (522, 41418), (531, 40716), (702, 30798), (708, 30537), (754, 28674), (767, 28188), (783, 27612), (972, 22243), (1044, 20709), (1053, 20532), (1062, 20358), (1131, 19116), (1404, 15399), (1508, 14337), (1534, 14094), (1566, 13806), (1593, 13572), (1711, 12636), (2106, 10266), (2124, 10179), (2262, 9558), (2301, 9396), (2349, 9204), (3068, 7047), (3132, 6903), (3159, 6844), (3186, 6786), (3393, 6372), (3422, 6318), (4212, 5133), (4524, 4779), (4602, 4698)]