18739686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 45527040

約数和(自身を除く): 26787354

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 37, 42, 62, 74, 93, 111, 186, 217, 222, 259, 389, 434, 518, 651, 777, 778, 1147, 1167, 1302, 1554, 2294, 2334, 2723, 3441, 5446, 6882, 8029, 8169, 12059, 14393, 16058, 16338, 24087, 24118, 28786, 36177, 43179, 48174, 72354, 84413, 86358, 100751, 168826, 201502, 253239, 302253, 446183, 506478, 604506, 892366, 1338549, 2677098, 3123281, 6246562, 9369843, 18739686]

約数ペア:

[(1, 18739686), (2, 9369843), (3, 6246562), (6, 3123281), (7, 2677098), (14, 1338549), (21, 892366), (31, 604506), (37, 506478), (42, 446183), (62, 302253), (74, 253239), (93, 201502), (111, 168826), (186, 100751), (217, 86358), (222, 84413), (259, 72354), (389, 48174), (434, 43179), (518, 36177), (651, 28786), (777, 24118), (778, 24087), (1147, 16338), (1167, 16058), (1302, 14393), (1554, 12059), (2294, 8169), (2334, 8029), (2723, 6882), (3441, 5446)]