21074424

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 65525760

約数和(自身を除く): 44451336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 47, 51, 56, 68, 84, 94, 102, 119, 136, 141, 157, 168, 188, 204, 238, 282, 314, 329, 357, 376, 408, 471, 476, 564, 628, 658, 714, 799, 942, 952, 987, 1099, 1128, 1256, 1316, 1428, 1598, 1884, 1974, 2198, 2397, 2632, 2669, 2856, 3196, 3297, 3768, 3948, 4396, 4794, 5338, 5593, 6392, 6594, 7379, 7896, 8007, 8792, 9588, 10676, 11186, 13188, 14758, 16014, 16779, 18683, 19176, 21352, 22137, 22372, 26376, 29516, 32028, 33558, 37366, 44274, 44744, 51653, 56049, 59032, 64056, 67116, 74732, 88548, 103306, 112098, 125443, 134232, 149464, 154959, 177096, 206612, 224196, 250886, 309918, 376329, 413224, 448392, 501772, 619836, 752658, 878101, 1003544, 1239672, 1505316, 1756202, 2634303, 3010632, 3512404, 5268606, 7024808, 10537212, 21074424]

約数ペア:

[(1, 21074424), (2, 10537212), (3, 7024808), (4, 5268606), (6, 3512404), (7, 3010632), (8, 2634303), (12, 1756202), (14, 1505316), (17, 1239672), (21, 1003544), (24, 878101), (28, 752658), (34, 619836), (42, 501772), (47, 448392), (51, 413224), (56, 376329), (68, 309918), (84, 250886), (94, 224196), (102, 206612), (119, 177096), (136, 154959), (141, 149464), (157, 134232), (168, 125443), (188, 112098), (204, 103306), (238, 88548), (282, 74732), (314, 67116), (329, 64056), (357, 59032), (376, 56049), (408, 51653), (471, 44744), (476, 44274), (564, 37366), (628, 33558), (658, 32028), (714, 29516), (799, 26376), (942, 22372), (952, 22137), (987, 21352), (1099, 19176), (1128, 18683), (1256, 16779), (1316, 16014), (1428, 14758), (1598, 13188), (1884, 11186), (1974, 10676), (2198, 9588), (2397, 8792), (2632, 8007), (2669, 7896), (2856, 7379), (3196, 6594), (3297, 6392), (3768, 5593), (3948, 5338), (4396, 4794)]