20740818

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 96

約数和(自身を含む): 52531200

約数和(自身を除く): 31790382

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 47, 49, 57, 79, 94, 98, 114, 133, 141, 147, 158, 237, 266, 282, 294, 329, 399, 474, 553, 658, 798, 893, 931, 987, 1106, 1501, 1659, 1786, 1862, 1974, 2303, 2679, 2793, 3002, 3318, 3713, 3871, 4503, 4606, 5358, 5586, 6251, 6909, 7426, 7742, 9006, 10507, 11139, 11613, 12502, 13818, 18753, 21014, 22278, 23226, 25991, 31521, 37506, 43757, 51982, 63042, 70547, 73549, 77973, 87514, 131271, 141094, 147098, 155946, 181937, 211641, 220647, 262542, 363874, 423282, 441294, 493829, 545811, 987658, 1091622, 1481487, 2962974, 3456803, 6913606, 10370409, 20740818]

約数ペア:

[(1, 20740818), (2, 10370409), (3, 6913606), (6, 3456803), (7, 2962974), (14, 1481487), (19, 1091622), (21, 987658), (38, 545811), (42, 493829), (47, 441294), (49, 423282), (57, 363874), (79, 262542), (94, 220647), (98, 211641), (114, 181937), (133, 155946), (141, 147098), (147, 141094), (158, 131271), (237, 87514), (266, 77973), (282, 73549), (294, 70547), (329, 63042), (399, 51982), (474, 43757), (553, 37506), (658, 31521), (798, 25991), (893, 23226), (931, 22278), (987, 21014), (1106, 18753), (1501, 13818), (1659, 12502), (1786, 11613), (1862, 11139), (1974, 10507), (2303, 9006), (2679, 7742), (2793, 7426), (3002, 6909), (3318, 6251), (3713, 5586), (3871, 5358), (4503, 4606)]