21384948

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{163}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 55994848

約数和(自身を除く): 34609900

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 78, 87, 116, 156, 163, 174, 326, 348, 377, 489, 652, 754, 841, 978, 1131, 1508, 1682, 1956, 2119, 2262, 2523, 3364, 4238, 4524, 4727, 5046, 6357, 8476, 9454, 10092, 10933, 12714, 14181, 18908, 21866, 25428, 28362, 32799, 43732, 56724, 61451, 65598, 122902, 131196, 137083, 184353, 245804, 274166, 368706, 411249, 548332, 737412, 822498, 1644996, 1782079, 3564158, 5346237, 7128316, 10692474, 21384948]

約数ペア:

[(1, 21384948), (2, 10692474), (3, 7128316), (4, 5346237), (6, 3564158), (12, 1782079), (13, 1644996), (26, 822498), (29, 737412), (39, 548332), (52, 411249), (58, 368706), (78, 274166), (87, 245804), (116, 184353), (156, 137083), (163, 131196), (174, 122902), (326, 65598), (348, 61451), (377, 56724), (489, 43732), (652, 32799), (754, 28362), (841, 25428), (978, 21866), (1131, 18908), (1508, 14181), (1682, 12714), (1956, 10933), (2119, 10092), (2262, 9454), (2523, 8476), (3364, 6357), (4238, 5046), (4524, 4727)]