21449520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^3$

素因数の和:112

約数の個数: 120

約数和(自身を含む): 74435712

約数和(自身を除く): 52986192

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 961, 1116, 1240, 1395, 1488, 1860, 1922, 2232, 2480, 2790, 2883, 3720, 3844, 4464, 4805, 5580, 5766, 7440, 7688, 8649, 9610, 11160, 11532, 14415, 15376, 17298, 19220, 22320, 23064, 28830, 29791, 34596, 38440, 43245, 46128, 57660, 59582, 69192, 76880, 86490, 89373, 115320, 119164, 138384, 148955, 172980, 178746, 230640, 238328, 268119, 297910, 345960, 357492, 446865, 476656, 536238, 595820, 691920, 714984, 893730, 1072476, 1191640, 1340595, 1429968, 1787460, 2144952, 2383280, 2681190, 3574920, 4289904, 5362380, 7149840, 10724760, 21449520]

約数ペア:

[(1, 21449520), (2, 10724760), (3, 7149840), (4, 5362380), (5, 4289904), (6, 3574920), (8, 2681190), (9, 2383280), (10, 2144952), (12, 1787460), (15, 1429968), (16, 1340595), (18, 1191640), (20, 1072476), (24, 893730), (30, 714984), (31, 691920), (36, 595820), (40, 536238), (45, 476656), (48, 446865), (60, 357492), (62, 345960), (72, 297910), (80, 268119), (90, 238328), (93, 230640), (120, 178746), (124, 172980), (144, 148955), (155, 138384), (180, 119164), (186, 115320), (240, 89373), (248, 86490), (279, 76880), (310, 69192), (360, 59582), (372, 57660), (465, 46128), (496, 43245), (558, 38440), (620, 34596), (720, 29791), (744, 28830), (930, 23064), (961, 22320), (1116, 19220), (1240, 17298), (1395, 15376), (1488, 14415), (1860, 11532), (1922, 11160), (2232, 9610), (2480, 8649), (2790, 7688), (2883, 7440), (3720, 5766), (3844, 5580), (4464, 4805)]