19910912

素因数分解:

$2^8\times 7^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 46701312

約数和(自身を除く): 26790400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 256, 271, 287, 328, 448, 542, 574, 656, 896, 1084, 1148, 1312, 1792, 1897, 2168, 2296, 2624, 3794, 4336, 4592, 5248, 7588, 8672, 9184, 10496, 11111, 15176, 17344, 18368, 22222, 30352, 34688, 36736, 44444, 60704, 69376, 73472, 77777, 88888, 121408, 155554, 177776, 242816, 311108, 355552, 485632, 622216, 711104, 1244432, 1422208, 2488864, 2844416, 4977728, 9955456, 19910912]

約数ペア:

[(1, 19910912), (2, 9955456), (4, 4977728), (7, 2844416), (8, 2488864), (14, 1422208), (16, 1244432), (28, 711104), (32, 622216), (41, 485632), (56, 355552), (64, 311108), (82, 242816), (112, 177776), (128, 155554), (164, 121408), (224, 88888), (256, 77777), (271, 73472), (287, 69376), (328, 60704), (448, 44444), (542, 36736), (574, 34688), (656, 30352), (896, 22222), (1084, 18368), (1148, 17344), (1312, 15176), (1792, 11111), (1897, 10496), (2168, 9184), (2296, 8672), (2624, 7588), (3794, 5248), (4336, 4592)]