19850478

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 24662802

約数列:

[1, 2, 3, 6, 19, 31, 38, 41, 57, 62, 82, 93, 114, 123, 137, 186, 246, 274, 411, 589, 779, 822, 1178, 1271, 1558, 1767, 2337, 2542, 2603, 3534, 3813, 4247, 4674, 5206, 5617, 7626, 7809, 8494, 11234, 12741, 15618, 16851, 24149, 25482, 33702, 48298, 72447, 80693, 106723, 144894, 161386, 174127, 213446, 242079, 320169, 348254, 484158, 522381, 640338, 1044762, 3308413, 6616826, 9925239, 19850478]

約数ペア:

[(1, 19850478), (2, 9925239), (3, 6616826), (6, 3308413), (19, 1044762), (31, 640338), (38, 522381), (41, 484158), (57, 348254), (62, 320169), (82, 242079), (93, 213446), (114, 174127), (123, 161386), (137, 144894), (186, 106723), (246, 80693), (274, 72447), (411, 48298), (589, 33702), (779, 25482), (822, 24149), (1178, 16851), (1271, 15618), (1558, 12741), (1767, 11234), (2337, 8494), (2542, 7809), (2603, 7626), (3534, 5617), (3813, 5206), (4247, 4674)]