17620155

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 36386064

約数和(自身を除く): 18765909

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 61, 63, 105, 131, 147, 183, 245, 305, 315, 393, 427, 441, 549, 655, 735, 915, 917, 1179, 1281, 1965, 2135, 2205, 2745, 2751, 2989, 3843, 4585, 5895, 6405, 6419, 7991, 8253, 8967, 13755, 14945, 19215, 19257, 23973, 26901, 32095, 39955, 41265, 44835, 55937, 57771, 71919, 96285, 119865, 134505, 167811, 279685, 288855, 359595, 391559, 503433, 839055, 1174677, 1957795, 2517165, 3524031, 5873385, 17620155]

約数ペア:

[(1, 17620155), (3, 5873385), (5, 3524031), (7, 2517165), (9, 1957795), (15, 1174677), (21, 839055), (35, 503433), (45, 391559), (49, 359595), (61, 288855), (63, 279685), (105, 167811), (131, 134505), (147, 119865), (183, 96285), (245, 71919), (305, 57771), (315, 55937), (393, 44835), (427, 41265), (441, 39955), (549, 32095), (655, 26901), (735, 23973), (915, 19257), (917, 19215), (1179, 14945), (1281, 13755), (1965, 8967), (2135, 8253), (2205, 7991), (2745, 6419), (2751, 6405), (2989, 5895), (3843, 4585)]