21353514

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 55310976

約数和(自身を除く): 33957462

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 37, 39, 42, 49, 74, 78, 91, 98, 111, 147, 151, 182, 222, 259, 273, 294, 302, 453, 481, 518, 546, 637, 777, 906, 962, 1057, 1274, 1443, 1554, 1813, 1911, 1963, 2114, 2886, 3171, 3367, 3626, 3822, 3926, 5439, 5587, 5889, 6342, 6734, 7399, 10101, 10878, 11174, 11778, 13741, 14798, 16761, 20202, 22197, 23569, 27482, 33522, 39109, 41223, 44394, 47138, 70707, 72631, 78218, 82446, 96187, 117327, 141414, 145262, 192374, 217893, 234654, 273763, 288561, 435786, 508417, 547526, 577122, 821289, 1016834, 1525251, 1642578, 3050502, 3558919, 7117838, 10676757, 21353514]

約数ペア:

[(1, 21353514), (2, 10676757), (3, 7117838), (6, 3558919), (7, 3050502), (13, 1642578), (14, 1525251), (21, 1016834), (26, 821289), (37, 577122), (39, 547526), (42, 508417), (49, 435786), (74, 288561), (78, 273763), (91, 234654), (98, 217893), (111, 192374), (147, 145262), (151, 141414), (182, 117327), (222, 96187), (259, 82446), (273, 78218), (294, 72631), (302, 70707), (453, 47138), (481, 44394), (518, 41223), (546, 39109), (637, 33522), (777, 27482), (906, 23569), (962, 22197), (1057, 20202), (1274, 16761), (1443, 14798), (1554, 13741), (1813, 11778), (1911, 11174), (1963, 10878), (2114, 10101), (2886, 7399), (3171, 6734), (3367, 6342), (3626, 5889), (3822, 5587), (3926, 5439)]