19865384

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 50232960

約数和(自身を除く): 30367576

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 49, 56, 68, 77, 88, 98, 119, 136, 154, 187, 196, 238, 271, 308, 374, 392, 476, 539, 542, 616, 748, 833, 952, 1078, 1084, 1309, 1496, 1666, 1897, 2156, 2168, 2618, 2981, 3332, 3794, 4312, 4607, 5236, 5962, 6664, 7588, 9163, 9214, 10472, 11924, 13279, 15176, 18326, 18428, 20867, 23848, 26558, 32249, 36652, 36856, 41734, 50677, 53116, 64498, 73304, 83468, 101354, 106232, 128996, 146069, 166936, 202708, 225743, 257992, 292138, 354739, 405416, 451486, 584276, 709478, 902972, 1168552, 1418956, 1805944, 2483173, 2837912, 4966346, 9932692, 19865384]

約数ペア:

[(1, 19865384), (2, 9932692), (4, 4966346), (7, 2837912), (8, 2483173), (11, 1805944), (14, 1418956), (17, 1168552), (22, 902972), (28, 709478), (34, 584276), (44, 451486), (49, 405416), (56, 354739), (68, 292138), (77, 257992), (88, 225743), (98, 202708), (119, 166936), (136, 146069), (154, 128996), (187, 106232), (196, 101354), (238, 83468), (271, 73304), (308, 64498), (374, 53116), (392, 50677), (476, 41734), (539, 36856), (542, 36652), (616, 32249), (748, 26558), (833, 23848), (952, 20867), (1078, 18428), (1084, 18326), (1309, 15176), (1496, 13279), (1666, 11924), (1897, 10472), (2156, 9214), (2168, 9163), (2618, 7588), (2981, 6664), (3332, 5962), (3794, 5236), (4312, 4607)]