19982072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1$

素因数の和:109

約数の個数: 96

約数和(自身を含む): 46908720

約数和(自身を除く): 26926648

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 37, 38, 44, 68, 74, 76, 88, 136, 148, 152, 187, 209, 296, 323, 361, 374, 407, 418, 629, 646, 703, 722, 748, 814, 836, 1258, 1292, 1406, 1444, 1496, 1628, 1672, 2516, 2584, 2812, 2888, 3256, 3553, 3971, 5032, 5624, 6137, 6919, 7106, 7733, 7942, 11951, 12274, 13357, 13838, 14212, 15466, 15884, 23902, 24548, 26714, 27676, 28424, 30932, 31768, 47804, 49096, 53428, 55352, 61864, 67507, 95608, 106856, 131461, 135014, 146927, 227069, 262922, 270028, 293854, 454138, 525844, 540056, 587708, 908276, 1051688, 1175416, 1816552, 2497759, 4995518, 9991036, 19982072]

約数ペア:

[(1, 19982072), (2, 9991036), (4, 4995518), (8, 2497759), (11, 1816552), (17, 1175416), (19, 1051688), (22, 908276), (34, 587708), (37, 540056), (38, 525844), (44, 454138), (68, 293854), (74, 270028), (76, 262922), (88, 227069), (136, 146927), (148, 135014), (152, 131461), (187, 106856), (209, 95608), (296, 67507), (323, 61864), (361, 55352), (374, 53428), (407, 49096), (418, 47804), (629, 31768), (646, 30932), (703, 28424), (722, 27676), (748, 26714), (814, 24548), (836, 23902), (1258, 15884), (1292, 15466), (1406, 14212), (1444, 13838), (1496, 13357), (1628, 12274), (1672, 11951), (2516, 7942), (2584, 7733), (2812, 7106), (2888, 6919), (3256, 6137), (3553, 5624), (3971, 5032)]