21390432

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:388

約数の個数: 96

約数和(自身を含む): 64915200

約数和(自身を除く): 43524768

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 139, 168, 224, 229, 278, 336, 417, 458, 556, 672, 687, 834, 916, 973, 1112, 1374, 1603, 1668, 1832, 1946, 2224, 2748, 2919, 3206, 3336, 3664, 3892, 4448, 4809, 5496, 5838, 6412, 6672, 7328, 7784, 9618, 10992, 11676, 12824, 13344, 15568, 19236, 21984, 23352, 25648, 31136, 31831, 38472, 46704, 51296, 63662, 76944, 93408, 95493, 127324, 153888, 190986, 222817, 254648, 381972, 445634, 509296, 668451, 763944, 891268, 1018592, 1336902, 1527888, 1782536, 2673804, 3055776, 3565072, 5347608, 7130144, 10695216, 21390432]

約数ペア:

[(1, 21390432), (2, 10695216), (3, 7130144), (4, 5347608), (6, 3565072), (7, 3055776), (8, 2673804), (12, 1782536), (14, 1527888), (16, 1336902), (21, 1018592), (24, 891268), (28, 763944), (32, 668451), (42, 509296), (48, 445634), (56, 381972), (84, 254648), (96, 222817), (112, 190986), (139, 153888), (168, 127324), (224, 95493), (229, 93408), (278, 76944), (336, 63662), (417, 51296), (458, 46704), (556, 38472), (672, 31831), (687, 31136), (834, 25648), (916, 23352), (973, 21984), (1112, 19236), (1374, 15568), (1603, 13344), (1668, 12824), (1832, 11676), (1946, 10992), (2224, 9618), (2748, 7784), (2919, 7328), (3206, 6672), (3336, 6412), (3664, 5838), (3892, 5496), (4448, 4809)]