19446616

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 43476480

約数和(自身を除く): 24029864

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 71, 73, 134, 142, 146, 268, 284, 292, 469, 497, 511, 536, 568, 584, 938, 994, 1022, 1876, 1988, 2044, 3752, 3976, 4088, 4757, 4891, 5183, 9514, 9782, 10366, 19028, 19564, 20732, 33299, 34237, 36281, 38056, 39128, 41464, 66598, 68474, 72562, 133196, 136948, 145124, 266392, 273896, 290248, 347261, 694522, 1389044, 2430827, 2778088, 4861654, 9723308, 19446616]

約数ペア:

[(1, 19446616), (2, 9723308), (4, 4861654), (7, 2778088), (8, 2430827), (14, 1389044), (28, 694522), (56, 347261), (67, 290248), (71, 273896), (73, 266392), (134, 145124), (142, 136948), (146, 133196), (268, 72562), (284, 68474), (292, 66598), (469, 41464), (497, 39128), (511, 38056), (536, 36281), (568, 34237), (584, 33299), (938, 20732), (994, 19564), (1022, 19028), (1876, 10366), (1988, 9782), (2044, 9514), (3752, 5183), (3976, 4891), (4088, 4757)]