18980556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 53932032

約数和(自身を除く): 34951476

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 37, 42, 62, 74, 84, 93, 111, 124, 148, 186, 197, 217, 222, 259, 372, 394, 434, 444, 518, 591, 651, 777, 788, 868, 1036, 1147, 1182, 1302, 1379, 1554, 2294, 2364, 2604, 2758, 3108, 3441, 4137, 4588, 5516, 6107, 6882, 7289, 8029, 8274, 12214, 13764, 14578, 16058, 16548, 18321, 21867, 24087, 24428, 29156, 32116, 36642, 42749, 43734, 48174, 51023, 73284, 85498, 87468, 96348, 102046, 128247, 153069, 170996, 204092, 225959, 256494, 306138, 451918, 512988, 612276, 677877, 903836, 1355754, 1581713, 2711508, 3163426, 4745139, 6326852, 9490278, 18980556]

約数ペア:

[(1, 18980556), (2, 9490278), (3, 6326852), (4, 4745139), (6, 3163426), (7, 2711508), (12, 1581713), (14, 1355754), (21, 903836), (28, 677877), (31, 612276), (37, 512988), (42, 451918), (62, 306138), (74, 256494), (84, 225959), (93, 204092), (111, 170996), (124, 153069), (148, 128247), (186, 102046), (197, 96348), (217, 87468), (222, 85498), (259, 73284), (372, 51023), (394, 48174), (434, 43734), (444, 42749), (518, 36642), (591, 32116), (651, 29156), (777, 24428), (788, 24087), (868, 21867), (1036, 18321), (1147, 16548), (1182, 16058), (1302, 14578), (1379, 13764), (1554, 12214), (2294, 8274), (2364, 8029), (2604, 7289), (2758, 6882), (3108, 6107), (3441, 5516), (4137, 4588)]