21514465

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 9451295

約数列:

[1, 5, 7, 31, 35, 79, 155, 217, 251, 395, 553, 1085, 1255, 1757, 2449, 2765, 7781, 8785, 12245, 17143, 19829, 38905, 54467, 85715, 99145, 138803, 272335, 614699, 694015, 3073495, 4302893, 21514465]

約数ペア:

[(1, 21514465), (5, 4302893), (7, 3073495), (31, 694015), (35, 614699), (79, 272335), (155, 138803), (217, 99145), (251, 85715), (395, 54467), (553, 38905), (1085, 19829), (1255, 17143), (1757, 12245), (2449, 8785), (2765, 7781)]