19379456

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 42200424

約数和(自身を除く): 22820968

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 61, 64, 68, 73, 122, 128, 136, 146, 244, 256, 272, 292, 488, 544, 584, 976, 1037, 1088, 1168, 1241, 1952, 2074, 2176, 2336, 2482, 3904, 4148, 4352, 4453, 4672, 4964, 7808, 8296, 8906, 9344, 9928, 15616, 16592, 17812, 18688, 19856, 33184, 35624, 39712, 66368, 71248, 75701, 79424, 132736, 142496, 151402, 158848, 265472, 284992, 302804, 317696, 569984, 605608, 1139968, 1211216, 2422432, 4844864, 9689728, 19379456]

約数ペア:

[(1, 19379456), (2, 9689728), (4, 4844864), (8, 2422432), (16, 1211216), (17, 1139968), (32, 605608), (34, 569984), (61, 317696), (64, 302804), (68, 284992), (73, 265472), (122, 158848), (128, 151402), (136, 142496), (146, 132736), (244, 79424), (256, 75701), (272, 71248), (292, 66368), (488, 39712), (544, 35624), (584, 33184), (976, 19856), (1037, 18688), (1088, 17812), (1168, 16592), (1241, 15616), (1952, 9928), (2074, 9344), (2176, 8906), (2336, 8296), (2482, 7808), (3904, 4964), (4148, 4672), (4352, 4453)]