19651864

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{631}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 39247200

約数和(自身を除く): 19595336

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 229, 458, 631, 916, 1262, 1832, 2524, 3893, 5048, 7786, 10727, 15572, 21454, 31144, 42908, 85816, 144499, 288998, 577996, 1155992, 2456483, 4912966, 9825932, 19651864]

約数ペア:

[(1, 19651864), (2, 9825932), (4, 4912966), (8, 2456483), (17, 1155992), (34, 577996), (68, 288998), (136, 144499), (229, 85816), (458, 42908), (631, 31144), (916, 21454), (1262, 15572), (1832, 10727), (2524, 7786), (3893, 5048)]