21085428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19309}}^1$

素因数の和:19336

約数の個数: 48

約数和(自身を含む): 60556160

約数和(自身を除く): 39470732

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19309, 38618, 57927, 77236, 115854, 135163, 231708, 251017, 270326, 405489, 502034, 540652, 753051, 810978, 1004068, 1506102, 1621956, 1757119, 3012204, 3514238, 5271357, 7028476, 10542714, 21085428]

約数ペア:

[(1, 21085428), (2, 10542714), (3, 7028476), (4, 5271357), (6, 3514238), (7, 3012204), (12, 1757119), (13, 1621956), (14, 1506102), (21, 1004068), (26, 810978), (28, 753051), (39, 540652), (42, 502034), (52, 405489), (78, 270326), (84, 251017), (91, 231708), (156, 135163), (182, 115854), (273, 77236), (364, 57927), (546, 38618), (1092, 19309)]