18827955

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 48

約数和(自身を含む): 35012640

約数和(自身を除く): 16184685

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 61, 95, 171, 183, 285, 305, 361, 549, 855, 915, 1083, 1159, 1805, 2745, 3249, 3477, 5415, 5795, 6859, 10431, 16245, 17385, 20577, 22021, 34295, 52155, 61731, 66063, 102885, 110105, 198189, 308655, 330315, 418399, 990945, 1255197, 2091995, 3765591, 6275985, 18827955]

約数ペア:

[(1, 18827955), (3, 6275985), (5, 3765591), (9, 2091995), (15, 1255197), (19, 990945), (45, 418399), (57, 330315), (61, 308655), (95, 198189), (171, 110105), (183, 102885), (285, 66063), (305, 61731), (361, 52155), (549, 34295), (855, 22021), (915, 20577), (1083, 17385), (1159, 16245), (1805, 10431), (2745, 6859), (3249, 5795), (3477, 5415)]