21678672

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:916

約数の個数: 80

約数和(自身を含む): 61281792

約数和(自身を除く): 39603120

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 31, 34, 48, 51, 62, 68, 93, 102, 124, 136, 186, 204, 248, 272, 372, 408, 496, 527, 744, 816, 857, 1054, 1488, 1581, 1714, 2108, 2571, 3162, 3428, 4216, 5142, 6324, 6856, 8432, 10284, 12648, 13712, 14569, 20568, 25296, 26567, 29138, 41136, 43707, 53134, 58276, 79701, 87414, 106268, 116552, 159402, 174828, 212536, 233104, 318804, 349656, 425072, 451639, 637608, 699312, 903278, 1275216, 1354917, 1806556, 2709834, 3613112, 5419668, 7226224, 10839336, 21678672]

約数ペア:

[(1, 21678672), (2, 10839336), (3, 7226224), (4, 5419668), (6, 3613112), (8, 2709834), (12, 1806556), (16, 1354917), (17, 1275216), (24, 903278), (31, 699312), (34, 637608), (48, 451639), (51, 425072), (62, 349656), (68, 318804), (93, 233104), (102, 212536), (124, 174828), (136, 159402), (186, 116552), (204, 106268), (248, 87414), (272, 79701), (372, 58276), (408, 53134), (496, 43707), (527, 41136), (744, 29138), (816, 26567), (857, 25296), (1054, 20568), (1488, 14569), (1581, 13712), (1714, 12648), (2108, 10284), (2571, 8432), (3162, 6856), (3428, 6324), (4216, 5142)]