21384832

素因数分解:

$2^7\times 7^1\times {\mathrm{29}}^1\times {\mathrm{823}}^1$

素因数の和:873

約数の個数: 64

約数和(自身を含む): 50428800

約数和(自身を除く): 29043968

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 64, 112, 116, 128, 203, 224, 232, 406, 448, 464, 812, 823, 896, 928, 1624, 1646, 1856, 3248, 3292, 3712, 5761, 6496, 6584, 11522, 12992, 13168, 23044, 23867, 25984, 26336, 46088, 47734, 52672, 92176, 95468, 105344, 167069, 184352, 190936, 334138, 368704, 381872, 668276, 737408, 763744, 1336552, 1527488, 2673104, 3054976, 5346208, 10692416, 21384832]

約数ペア:

[(1, 21384832), (2, 10692416), (4, 5346208), (7, 3054976), (8, 2673104), (14, 1527488), (16, 1336552), (28, 763744), (29, 737408), (32, 668276), (56, 381872), (58, 368704), (64, 334138), (112, 190936), (116, 184352), (128, 167069), (203, 105344), (224, 95468), (232, 92176), (406, 52672), (448, 47734), (464, 46088), (812, 26336), (823, 25984), (896, 23867), (928, 23044), (1624, 13168), (1646, 12992), (1856, 11522), (3248, 6584), (3292, 6496), (3712, 5761)]