19429894

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 17065466

約数列:

[1, 2, 11, 19, 22, 23, 38, 43, 46, 47, 86, 94, 209, 253, 418, 437, 473, 506, 517, 817, 874, 893, 946, 989, 1034, 1081, 1634, 1786, 1978, 2021, 2162, 4042, 4807, 8987, 9614, 9823, 10879, 11891, 17974, 18791, 19646, 20539, 21758, 22231, 23782, 37582, 38399, 41078, 44462, 46483, 76798, 92966, 206701, 225929, 413402, 422389, 451858, 511313, 844778, 883177, 1022626, 1766354, 9714947, 19429894]

約数ペア:

[(1, 19429894), (2, 9714947), (11, 1766354), (19, 1022626), (22, 883177), (23, 844778), (38, 511313), (43, 451858), (46, 422389), (47, 413402), (86, 225929), (94, 206701), (209, 92966), (253, 76798), (418, 46483), (437, 44462), (473, 41078), (506, 38399), (517, 37582), (817, 23782), (874, 22231), (893, 21758), (946, 20539), (989, 19646), (1034, 18791), (1081, 17974), (1634, 11891), (1786, 10879), (1978, 9823), (2021, 9614), (2162, 8987), (4042, 4807)]