20697992

素因数分解:

$2^3\times 7^3\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:443

約数の個数: 64

約数和(自身を含む): 47760000

約数和(自身を除く): 27062008

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 343, 392, 397, 532, 686, 794, 931, 1064, 1372, 1588, 1862, 2744, 2779, 3176, 3724, 5558, 6517, 7448, 7543, 11116, 13034, 15086, 19453, 22232, 26068, 30172, 38906, 52136, 52801, 60344, 77812, 105602, 136171, 155624, 211204, 272342, 369607, 422408, 544684, 739214, 1089368, 1478428, 2587249, 2956856, 5174498, 10348996, 20697992]

約数ペア:

[(1, 20697992), (2, 10348996), (4, 5174498), (7, 2956856), (8, 2587249), (14, 1478428), (19, 1089368), (28, 739214), (38, 544684), (49, 422408), (56, 369607), (76, 272342), (98, 211204), (133, 155624), (152, 136171), (196, 105602), (266, 77812), (343, 60344), (392, 52801), (397, 52136), (532, 38906), (686, 30172), (794, 26068), (931, 22232), (1064, 19453), (1372, 15086), (1588, 13034), (1862, 11116), (2744, 7543), (2779, 7448), (3176, 6517), (3724, 5558)]