21252384

素因数分解:

$2^5\times 3^2\times {\mathrm{109}}^1\times {\mathrm{677}}^1$

素因数の和:802

約数の個数: 72

約数和(自身を含む): 61081020

約数和(自身を除く): 39828636

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 109, 144, 218, 288, 327, 436, 654, 677, 872, 981, 1308, 1354, 1744, 1962, 2031, 2616, 2708, 3488, 3924, 4062, 5232, 5416, 6093, 7848, 8124, 10464, 10832, 12186, 15696, 16248, 21664, 24372, 31392, 32496, 48744, 64992, 73793, 97488, 147586, 194976, 221379, 295172, 442758, 590344, 664137, 885516, 1180688, 1328274, 1771032, 2361376, 2656548, 3542064, 5313096, 7084128, 10626192, 21252384]

約数ペア:

[(1, 21252384), (2, 10626192), (3, 7084128), (4, 5313096), (6, 3542064), (8, 2656548), (9, 2361376), (12, 1771032), (16, 1328274), (18, 1180688), (24, 885516), (32, 664137), (36, 590344), (48, 442758), (72, 295172), (96, 221379), (109, 194976), (144, 147586), (218, 97488), (288, 73793), (327, 64992), (436, 48744), (654, 32496), (677, 31392), (872, 24372), (981, 21664), (1308, 16248), (1354, 15696), (1744, 12186), (1962, 10832), (2031, 10464), (2616, 8124), (2708, 7848), (3488, 6093), (3924, 5416), (4062, 5232)]