19903212

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{3761}}^1$

素因数の和:3788

約数の個数: 72

約数和(自身を含む): 60041520

約数和(自身を除く): 40138308

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 3761, 5292, 7522, 11283, 15044, 22566, 26327, 33849, 45132, 52654, 67698, 78981, 101547, 105308, 135396, 157962, 184289, 203094, 236943, 315924, 368578, 406188, 473886, 552867, 710829, 737156, 947772, 1105734, 1421658, 1658601, 2211468, 2843316, 3317202, 4975803, 6634404, 9951606, 19903212]

約数ペア:

[(1, 19903212), (2, 9951606), (3, 6634404), (4, 4975803), (6, 3317202), (7, 2843316), (9, 2211468), (12, 1658601), (14, 1421658), (18, 1105734), (21, 947772), (27, 737156), (28, 710829), (36, 552867), (42, 473886), (49, 406188), (54, 368578), (63, 315924), (84, 236943), (98, 203094), (108, 184289), (126, 157962), (147, 135396), (189, 105308), (196, 101547), (252, 78981), (294, 67698), (378, 52654), (441, 45132), (588, 33849), (756, 26327), (882, 22566), (1323, 15044), (1764, 11283), (2646, 7522), (3761, 5292)]