19977104

素因数分解:

$2^4\times 7^2\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:412

約数の個数: 60

約数和(自身を含む): 45715824

約数和(自身を除く): 25738720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 83, 98, 112, 166, 196, 307, 332, 392, 581, 614, 664, 784, 1162, 1228, 1328, 2149, 2324, 2456, 4067, 4298, 4648, 4912, 8134, 8596, 9296, 15043, 16268, 17192, 25481, 30086, 32536, 34384, 50962, 60172, 65072, 101924, 120344, 178367, 203848, 240688, 356734, 407696, 713468, 1248569, 1426936, 2497138, 2853872, 4994276, 9988552, 19977104]

約数ペア:

[(1, 19977104), (2, 9988552), (4, 4994276), (7, 2853872), (8, 2497138), (14, 1426936), (16, 1248569), (28, 713468), (49, 407696), (56, 356734), (83, 240688), (98, 203848), (112, 178367), (166, 120344), (196, 101924), (307, 65072), (332, 60172), (392, 50962), (581, 34384), (614, 32536), (664, 30086), (784, 25481), (1162, 17192), (1228, 16268), (1328, 15043), (2149, 9296), (2324, 8596), (2456, 8134), (4067, 4912), (4298, 4648)]