28879326

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:398

約数の個数: 72

約数和(自身を含む): 73625760

約数和(自身を除く): 44746434

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 137, 147, 239, 274, 294, 411, 441, 478, 717, 822, 882, 959, 1233, 1434, 1673, 1918, 2151, 2466, 2877, 3346, 4302, 5019, 5754, 6713, 8631, 10038, 11711, 13426, 15057, 17262, 20139, 23422, 30114, 32743, 35133, 40278, 60417, 65486, 70266, 98229, 105399, 120834, 196458, 210798, 229201, 294687, 458402, 589374, 687603, 1375206, 1604407, 2062809, 3208814, 4125618, 4813221, 9626442, 14439663, 28879326]

約数ペア:

[(1, 28879326), (2, 14439663), (3, 9626442), (6, 4813221), (7, 4125618), (9, 3208814), (14, 2062809), (18, 1604407), (21, 1375206), (42, 687603), (49, 589374), (63, 458402), (98, 294687), (126, 229201), (137, 210798), (147, 196458), (239, 120834), (274, 105399), (294, 98229), (411, 70266), (441, 65486), (478, 60417), (717, 40278), (822, 35133), (882, 32743), (959, 30114), (1233, 23422), (1434, 20139), (1673, 17262), (1918, 15057), (2151, 13426), (2466, 11711), (2877, 10038), (3346, 8631), (4302, 6713), (5019, 5754)]