21087456

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:364

約数の個数: 96

約数和(自身を含む): 60808608

約数和(自身を除く): 39721152

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 61, 78, 96, 104, 122, 156, 183, 208, 244, 277, 312, 366, 416, 488, 554, 624, 732, 793, 831, 976, 1108, 1248, 1464, 1586, 1662, 1952, 2216, 2379, 2928, 3172, 3324, 3601, 4432, 4758, 5856, 6344, 6648, 7202, 8864, 9516, 10803, 12688, 13296, 14404, 16897, 19032, 21606, 25376, 26592, 28808, 33794, 38064, 43212, 50691, 57616, 67588, 76128, 86424, 101382, 115232, 135176, 172848, 202764, 219661, 270352, 345696, 405528, 439322, 540704, 658983, 811056, 878644, 1317966, 1622112, 1757288, 2635932, 3514576, 5271864, 7029152, 10543728, 21087456]

約数ペア:

[(1, 21087456), (2, 10543728), (3, 7029152), (4, 5271864), (6, 3514576), (8, 2635932), (12, 1757288), (13, 1622112), (16, 1317966), (24, 878644), (26, 811056), (32, 658983), (39, 540704), (48, 439322), (52, 405528), (61, 345696), (78, 270352), (96, 219661), (104, 202764), (122, 172848), (156, 135176), (183, 115232), (208, 101382), (244, 86424), (277, 76128), (312, 67588), (366, 57616), (416, 50691), (488, 43212), (554, 38064), (624, 33794), (732, 28808), (793, 26592), (831, 25376), (976, 21606), (1108, 19032), (1248, 16897), (1464, 14404), (1586, 13296), (1662, 12688), (1952, 10803), (2216, 9516), (2379, 8864), (2928, 7202), (3172, 6648), (3324, 6344), (3601, 5856), (4432, 4758)]