21074816

素因数分解:

$2^7\times 7^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:611

約数の個数: 64

約数和(自身を含む): 49188480

約数和(自身を除く): 28113664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 301, 344, 448, 547, 602, 688, 896, 1094, 1204, 1376, 2188, 2408, 2752, 3829, 4376, 4816, 5504, 7658, 8752, 9632, 15316, 17504, 19264, 23521, 30632, 35008, 38528, 47042, 61264, 70016, 94084, 122528, 164647, 188168, 245056, 329294, 376336, 490112, 658588, 752672, 1317176, 1505344, 2634352, 3010688, 5268704, 10537408, 21074816]

約数ペア:

[(1, 21074816), (2, 10537408), (4, 5268704), (7, 3010688), (8, 2634352), (14, 1505344), (16, 1317176), (28, 752672), (32, 658588), (43, 490112), (56, 376336), (64, 329294), (86, 245056), (112, 188168), (128, 164647), (172, 122528), (224, 94084), (301, 70016), (344, 61264), (448, 47042), (547, 38528), (602, 35008), (688, 30632), (896, 23521), (1094, 19264), (1204, 17504), (1376, 15316), (2188, 9632), (2408, 8752), (2752, 7658), (3829, 5504), (4376, 4816)]