21211158816

素因数分解:

$2^5\times 3^2\times {\mathrm{409}}^1\times {\mathrm{180073}}^1$

素因数の和:180498

約数の個数: 72

約数和(自身を含む): 60467048460

約数和(自身を除く): 39255889644

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 409, 818, 1227, 1636, 2454, 3272, 3681, 4908, 6544, 7362, 9816, 13088, 14724, 19632, 29448, 39264, 58896, 117792, 180073, 360146, 540219, 720292, 1080438, 1440584, 1620657, 2160876, 2881168, 3241314, 4321752, 5762336, 6482628, 8643504, 12965256, 17287008, 25930512, 51861024, 73649857, 147299714, 220949571, 294599428, 441899142, 589198856, 662848713, 883798284, 1178397712, 1325697426, 1767596568, 2356795424, 2651394852, 3535193136, 5302789704, 7070386272, 10605579408, 21211158816]

約数ペア:

[(1, 21211158816), (2, 10605579408), (3, 7070386272), (4, 5302789704), (6, 3535193136), (8, 2651394852), (9, 2356795424), (12, 1767596568), (16, 1325697426), (18, 1178397712), (24, 883798284), (32, 662848713), (36, 589198856), (48, 441899142), (72, 294599428), (96, 220949571), (144, 147299714), (288, 73649857), (409, 51861024), (818, 25930512), (1227, 17287008), (1636, 12965256), (2454, 8643504), (3272, 6482628), (3681, 5762336), (4908, 4321752), (6544, 3241314), (7362, 2881168), (9816, 2160876), (13088, 1620657), (14724, 1440584), (19632, 1080438), (29448, 720292), (39264, 540219), (58896, 360146), (117792, 180073)]