21985248

素因数分解:

$2^5\times 3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 61236000

約数和(自身を除く): 39250752

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 32, 48, 53, 58, 87, 96, 106, 116, 149, 159, 174, 212, 232, 298, 318, 348, 424, 447, 464, 596, 636, 696, 848, 894, 928, 1192, 1272, 1392, 1537, 1696, 1788, 2384, 2544, 2784, 3074, 3576, 4321, 4611, 4768, 5088, 6148, 7152, 7897, 8642, 9222, 12296, 12963, 14304, 15794, 17284, 18444, 23691, 24592, 25926, 31588, 34568, 36888, 47382, 49184, 51852, 63176, 69136, 73776, 94764, 103704, 126352, 138272, 147552, 189528, 207408, 229013, 252704, 379056, 414816, 458026, 687039, 758112, 916052, 1374078, 1832104, 2748156, 3664208, 5496312, 7328416, 10992624, 21985248]

約数ペア:

[(1, 21985248), (2, 10992624), (3, 7328416), (4, 5496312), (6, 3664208), (8, 2748156), (12, 1832104), (16, 1374078), (24, 916052), (29, 758112), (32, 687039), (48, 458026), (53, 414816), (58, 379056), (87, 252704), (96, 229013), (106, 207408), (116, 189528), (149, 147552), (159, 138272), (174, 126352), (212, 103704), (232, 94764), (298, 73776), (318, 69136), (348, 63176), (424, 51852), (447, 49184), (464, 47382), (596, 36888), (636, 34568), (696, 31588), (848, 25926), (894, 24592), (928, 23691), (1192, 18444), (1272, 17284), (1392, 15794), (1537, 14304), (1696, 12963), (1788, 12296), (2384, 9222), (2544, 8642), (2784, 7897), (3074, 7152), (3576, 6148), (4321, 5088), (4611, 4768)]