21637938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16619}}^1$

素因数の和:16662

約数の個数: 32

約数和(自身を含む): 51056640

約数和(自身を除く): 29418702

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 16619, 33238, 49857, 99714, 116333, 232666, 348999, 515189, 697998, 1030378, 1545567, 3091134, 3606323, 7212646, 10818969, 21637938]

約数ペア:

[(1, 21637938), (2, 10818969), (3, 7212646), (6, 3606323), (7, 3091134), (14, 1545567), (21, 1030378), (31, 697998), (42, 515189), (62, 348999), (93, 232666), (186, 116333), (217, 99714), (434, 49857), (651, 33238), (1302, 16619)]