21132328

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 49904640

約数和(自身を除く): 28772312

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 37, 47, 49, 56, 62, 74, 94, 98, 124, 148, 188, 196, 217, 248, 259, 296, 329, 376, 392, 434, 518, 658, 868, 1036, 1147, 1316, 1457, 1519, 1736, 1739, 1813, 2072, 2294, 2303, 2632, 2914, 3038, 3478, 3626, 4588, 4606, 5828, 6076, 6956, 7252, 8029, 9176, 9212, 10199, 11656, 12152, 12173, 13912, 14504, 16058, 18424, 20398, 24346, 32116, 40796, 48692, 53909, 56203, 64232, 71393, 81592, 85211, 97384, 107818, 112406, 142786, 170422, 215636, 224812, 285572, 340844, 377363, 431272, 449624, 571144, 681688, 754726, 1509452, 2641541, 3018904, 5283082, 10566164, 21132328]

約数ペア:

[(1, 21132328), (2, 10566164), (4, 5283082), (7, 3018904), (8, 2641541), (14, 1509452), (28, 754726), (31, 681688), (37, 571144), (47, 449624), (49, 431272), (56, 377363), (62, 340844), (74, 285572), (94, 224812), (98, 215636), (124, 170422), (148, 142786), (188, 112406), (196, 107818), (217, 97384), (248, 85211), (259, 81592), (296, 71393), (329, 64232), (376, 56203), (392, 53909), (434, 48692), (518, 40796), (658, 32116), (868, 24346), (1036, 20398), (1147, 18424), (1316, 16058), (1457, 14504), (1519, 13912), (1736, 12173), (1739, 12152), (1813, 11656), (2072, 10199), (2294, 9212), (2303, 9176), (2632, 8029), (2914, 7252), (3038, 6956), (3478, 6076), (3626, 5828), (4588, 4606)]