197121561

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 356227200

約数和(自身を除く): 159105639

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 61, 89, 91, 133, 147, 183, 247, 267, 273, 399, 427, 623, 637, 741, 793, 931, 1157, 1159, 1281, 1691, 1729, 1869, 1911, 2379, 2793, 2989, 3471, 3477, 4361, 5073, 5187, 5429, 5551, 8099, 8113, 8967, 11837, 12103, 13083, 15067, 16287, 16653, 21983, 24297, 24339, 35511, 36309, 38003, 38857, 45201, 56693, 56791, 65949, 70577, 82859, 103151, 105469, 114009, 116571, 153881, 170079, 170373, 211731, 248577, 266021, 309453, 316407, 461643, 494039, 722057, 738283, 798063, 1077167, 1340963, 1482117, 2166171, 2214849, 3231501, 3458273, 4022889, 5054399, 9386741, 10374819, 15163197, 28160223, 65707187, 197121561]

約数ペア:

[(1, 197121561), (3, 65707187), (7, 28160223), (13, 15163197), (19, 10374819), (21, 9386741), (39, 5054399), (49, 4022889), (57, 3458273), (61, 3231501), (89, 2214849), (91, 2166171), (133, 1482117), (147, 1340963), (183, 1077167), (247, 798063), (267, 738283), (273, 722057), (399, 494039), (427, 461643), (623, 316407), (637, 309453), (741, 266021), (793, 248577), (931, 211731), (1157, 170373), (1159, 170079), (1281, 153881), (1691, 116571), (1729, 114009), (1869, 105469), (1911, 103151), (2379, 82859), (2793, 70577), (2989, 65949), (3471, 56791), (3477, 56693), (4361, 45201), (5073, 38857), (5187, 38003), (5429, 36309), (5551, 35511), (8099, 24339), (8113, 24297), (8967, 21983), (11837, 16653), (12103, 16287), (13083, 15067)]