19739925

素因数分解:

$3^2\times 5^2\times {\mathrm{59}}^1\times {\mathrm{1487}}^1$

素因数の和:1562

約数の個数: 36

約数和(自身を含む): 35979840

約数和(自身を除く): 16239915

約数列:

[1, 3, 5, 9, 15, 25, 45, 59, 75, 177, 225, 295, 531, 885, 1475, 1487, 2655, 4425, 4461, 7435, 13275, 13383, 22305, 37175, 66915, 87733, 111525, 263199, 334575, 438665, 789597, 1315995, 2193325, 3947985, 6579975, 19739925]

約数ペア:

[(1, 19739925), (3, 6579975), (5, 3947985), (9, 2193325), (15, 1315995), (25, 789597), (45, 438665), (59, 334575), (75, 263199), (177, 111525), (225, 87733), (295, 66915), (531, 37175), (885, 22305), (1475, 13383), (1487, 13275), (2655, 7435), (4425, 4461)]