18943652

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{733}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 41432832

約数和(自身を除く): 22489180

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 71, 91, 142, 182, 284, 364, 497, 733, 923, 994, 1466, 1846, 1988, 2932, 3692, 5131, 6461, 9529, 10262, 12922, 19058, 20524, 25844, 38116, 52043, 66703, 104086, 133406, 208172, 266812, 364301, 676559, 728602, 1353118, 1457204, 2706236, 4735913, 9471826, 18943652]

約数ペア:

[(1, 18943652), (2, 9471826), (4, 4735913), (7, 2706236), (13, 1457204), (14, 1353118), (26, 728602), (28, 676559), (52, 364301), (71, 266812), (91, 208172), (142, 133406), (182, 104086), (284, 66703), (364, 52043), (497, 38116), (733, 25844), (923, 20524), (994, 19058), (1466, 12922), (1846, 10262), (1988, 9529), (2932, 6461), (3692, 5131)]