19308328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 42154560

約数和(自身を除く): 22846232

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 67, 68, 104, 134, 136, 163, 221, 268, 326, 442, 536, 652, 871, 884, 1139, 1304, 1742, 1768, 2119, 2278, 2771, 3484, 4238, 4556, 5542, 6968, 8476, 9112, 10921, 11084, 14807, 16952, 21842, 22168, 29614, 36023, 43684, 59228, 72046, 87368, 118456, 141973, 144092, 185657, 283946, 288184, 371314, 567892, 742628, 1135784, 1485256, 2413541, 4827082, 9654164, 19308328]

約数ペア:

[(1, 19308328), (2, 9654164), (4, 4827082), (8, 2413541), (13, 1485256), (17, 1135784), (26, 742628), (34, 567892), (52, 371314), (67, 288184), (68, 283946), (104, 185657), (134, 144092), (136, 141973), (163, 118456), (221, 87368), (268, 72046), (326, 59228), (442, 43684), (536, 36023), (652, 29614), (871, 22168), (884, 21842), (1139, 16952), (1304, 14807), (1742, 11084), (1768, 10921), (2119, 9112), (2278, 8476), (2771, 6968), (3484, 5542), (4238, 4556)]