19394775

素因数分解:

$3^3\times 5^2\times {\mathrm{59}}^1\times {\mathrm{487}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 36307200

約数和(自身を除く): 16912425

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 59, 75, 135, 177, 225, 295, 487, 531, 675, 885, 1461, 1475, 1593, 2435, 2655, 4383, 4425, 7305, 7965, 12175, 13149, 13275, 21915, 28733, 36525, 39825, 65745, 86199, 109575, 143665, 258597, 328725, 430995, 718325, 775791, 1292985, 2154975, 3878955, 6464925, 19394775]

約数ペア:

[(1, 19394775), (3, 6464925), (5, 3878955), (9, 2154975), (15, 1292985), (25, 775791), (27, 718325), (45, 430995), (59, 328725), (75, 258597), (135, 143665), (177, 109575), (225, 86199), (295, 65745), (487, 39825), (531, 36525), (675, 28733), (885, 21915), (1461, 13275), (1475, 13149), (1593, 12175), (2435, 7965), (2655, 7305), (4383, 4425)]