20674458

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:192

約数の個数: 96

約数和(自身を含む): 54312960

約数和(自身を除く): 33638502

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 67, 79, 93, 126, 134, 158, 186, 201, 217, 237, 279, 402, 434, 469, 474, 553, 558, 603, 651, 711, 938, 1106, 1206, 1302, 1407, 1422, 1659, 1953, 2077, 2449, 2814, 3318, 3906, 4154, 4221, 4898, 4977, 5293, 6231, 7347, 8442, 9954, 10586, 12462, 14539, 14694, 15879, 17143, 18693, 22041, 29078, 31758, 34286, 37051, 37386, 43617, 44082, 47637, 51429, 74102, 87234, 95274, 102858, 111153, 130851, 154287, 164083, 222306, 261702, 308574, 328166, 333459, 492249, 666918, 984498, 1148581, 1476747, 2297162, 2953494, 3445743, 6891486, 10337229, 20674458]

約数ペア:

[(1, 20674458), (2, 10337229), (3, 6891486), (6, 3445743), (7, 2953494), (9, 2297162), (14, 1476747), (18, 1148581), (21, 984498), (31, 666918), (42, 492249), (62, 333459), (63, 328166), (67, 308574), (79, 261702), (93, 222306), (126, 164083), (134, 154287), (158, 130851), (186, 111153), (201, 102858), (217, 95274), (237, 87234), (279, 74102), (402, 51429), (434, 47637), (469, 44082), (474, 43617), (553, 37386), (558, 37051), (603, 34286), (651, 31758), (711, 29078), (938, 22041), (1106, 18693), (1206, 17143), (1302, 15879), (1407, 14694), (1422, 14539), (1659, 12462), (1953, 10586), (2077, 9954), (2449, 8442), (2814, 7347), (3318, 6231), (3906, 5293), (4154, 4977), (4221, 4898)]