20656538

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 48

約数和(自身を含む): 38007144

約数和(自身を除く): 17350606

約数列:

[1, 2, 7, 14, 41, 49, 53, 82, 97, 98, 106, 194, 287, 371, 574, 679, 742, 1358, 2009, 2173, 2597, 3977, 4018, 4346, 4753, 5141, 5194, 7954, 9506, 10282, 15211, 27839, 30422, 35987, 55678, 71974, 106477, 194873, 210781, 212954, 251909, 389746, 421562, 503818, 1475467, 2950934, 10328269, 20656538]

約数ペア:

[(1, 20656538), (2, 10328269), (7, 2950934), (14, 1475467), (41, 503818), (49, 421562), (53, 389746), (82, 251909), (97, 212954), (98, 210781), (106, 194873), (194, 106477), (287, 71974), (371, 55678), (574, 35987), (679, 30422), (742, 27839), (1358, 15211), (2009, 10282), (2173, 9506), (2597, 7954), (3977, 5194), (4018, 5141), (4346, 4753)]