20353718

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 39398400

約数和(自身を除く): 19044682

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 79, 98, 154, 158, 239, 478, 539, 553, 869, 1078, 1106, 1673, 1738, 2629, 3346, 3871, 5258, 6083, 7742, 11711, 12166, 18403, 18881, 23422, 36806, 37762, 42581, 85162, 128821, 132167, 207691, 257642, 264334, 415382, 925169, 1453837, 1850338, 2907674, 10176859, 20353718]

約数ペア:

[(1, 20353718), (2, 10176859), (7, 2907674), (11, 1850338), (14, 1453837), (22, 925169), (49, 415382), (77, 264334), (79, 257642), (98, 207691), (154, 132167), (158, 128821), (239, 85162), (478, 42581), (539, 37762), (553, 36806), (869, 23422), (1078, 18881), (1106, 18403), (1673, 12166), (1738, 11711), (2629, 7742), (3346, 6083), (3871, 5258)]