21398208

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8573}}^1$

素因数の和:8601

約数の個数: 56

約数和(自身を含む): 60978288

約数和(自身を除く): 39580080

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 156, 192, 208, 312, 416, 624, 832, 1248, 2496, 8573, 17146, 25719, 34292, 51438, 68584, 102876, 111449, 137168, 205752, 222898, 274336, 334347, 411504, 445796, 548672, 668694, 823008, 891592, 1337388, 1646016, 1783184, 2674776, 3566368, 5349552, 7132736, 10699104, 21398208]

約数ペア:

[(1, 21398208), (2, 10699104), (3, 7132736), (4, 5349552), (6, 3566368), (8, 2674776), (12, 1783184), (13, 1646016), (16, 1337388), (24, 891592), (26, 823008), (32, 668694), (39, 548672), (48, 445796), (52, 411504), (64, 334347), (78, 274336), (96, 222898), (104, 205752), (156, 137168), (192, 111449), (208, 102876), (312, 68584), (416, 51438), (624, 34292), (832, 25719), (1248, 17146), (2496, 8573)]