18971244

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 49965552

約数和(自身を除く): 30994308

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 61, 106, 122, 159, 163, 183, 212, 244, 318, 326, 366, 477, 489, 549, 636, 652, 732, 954, 978, 1098, 1467, 1908, 1956, 2196, 2934, 3233, 5868, 6466, 8639, 9699, 9943, 12932, 17278, 19398, 19886, 25917, 29097, 29829, 34556, 38796, 39772, 51834, 58194, 59658, 77751, 89487, 103668, 116388, 119316, 155502, 178974, 311004, 357948, 526979, 1053958, 1580937, 2107916, 3161874, 4742811, 6323748, 9485622, 18971244]

約数ペア:

[(1, 18971244), (2, 9485622), (3, 6323748), (4, 4742811), (6, 3161874), (9, 2107916), (12, 1580937), (18, 1053958), (36, 526979), (53, 357948), (61, 311004), (106, 178974), (122, 155502), (159, 119316), (163, 116388), (183, 103668), (212, 89487), (244, 77751), (318, 59658), (326, 58194), (366, 51834), (477, 39772), (489, 38796), (549, 34556), (636, 29829), (652, 29097), (732, 25917), (954, 19886), (978, 19398), (1098, 17278), (1467, 12932), (1908, 9943), (1956, 9699), (2196, 8639), (2934, 6466), (3233, 5868)]