19016492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 40877760

約数和(自身を除く): 21861268

約数列:

[1, 2, 4, 11, 19, 22, 23, 38, 43, 44, 46, 76, 86, 92, 172, 209, 253, 418, 437, 473, 506, 529, 817, 836, 874, 946, 989, 1012, 1058, 1634, 1748, 1892, 1978, 2116, 3268, 3956, 4807, 5819, 8987, 9614, 10051, 10879, 11638, 17974, 18791, 19228, 20102, 21758, 22747, 23276, 35948, 37582, 40204, 43516, 45494, 75164, 90988, 110561, 206701, 221122, 250217, 413402, 432193, 442244, 500434, 826804, 864386, 1000868, 1728772, 4754123, 9508246, 19016492]

約数ペア:

[(1, 19016492), (2, 9508246), (4, 4754123), (11, 1728772), (19, 1000868), (22, 864386), (23, 826804), (38, 500434), (43, 442244), (44, 432193), (46, 413402), (76, 250217), (86, 221122), (92, 206701), (172, 110561), (209, 90988), (253, 75164), (418, 45494), (437, 43516), (473, 40204), (506, 37582), (529, 35948), (817, 23276), (836, 22747), (874, 21758), (946, 20102), (989, 19228), (1012, 18791), (1058, 17974), (1634, 11638), (1748, 10879), (1892, 10051), (1978, 9614), (2116, 8987), (3268, 5819), (3956, 4807)]