20899914

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 29177526

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 53, 82, 106, 123, 159, 229, 246, 287, 318, 371, 458, 574, 687, 742, 861, 1113, 1374, 1603, 1722, 2173, 2226, 3206, 4346, 4809, 6519, 9389, 9618, 12137, 13038, 15211, 18778, 24274, 28167, 30422, 36411, 45633, 56334, 65723, 72822, 84959, 91266, 131446, 169918, 197169, 254877, 394338, 497617, 509754, 995234, 1492851, 2985702, 3483319, 6966638, 10449957, 20899914]

約数ペア:

[(1, 20899914), (2, 10449957), (3, 6966638), (6, 3483319), (7, 2985702), (14, 1492851), (21, 995234), (41, 509754), (42, 497617), (53, 394338), (82, 254877), (106, 197169), (123, 169918), (159, 131446), (229, 91266), (246, 84959), (287, 72822), (318, 65723), (371, 56334), (458, 45633), (574, 36411), (687, 30422), (742, 28167), (861, 24274), (1113, 18778), (1374, 15211), (1603, 13038), (1722, 12137), (2173, 9618), (2226, 9389), (3206, 6519), (4346, 4809)]