19937862

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2003}}^1$

素因数の和:2097

約数の個数: 48

約数和(自身を含む): 50019840

約数和(自身を除く): 30081978

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 79, 126, 158, 237, 474, 553, 711, 1106, 1422, 1659, 2003, 3318, 4006, 4977, 6009, 9954, 12018, 14021, 18027, 28042, 36054, 42063, 84126, 126189, 158237, 252378, 316474, 474711, 949422, 1107659, 1424133, 2215318, 2848266, 3322977, 6645954, 9968931, 19937862]

約数ペア:

[(1, 19937862), (2, 9968931), (3, 6645954), (6, 3322977), (7, 2848266), (9, 2215318), (14, 1424133), (18, 1107659), (21, 949422), (42, 474711), (63, 316474), (79, 252378), (126, 158237), (158, 126189), (237, 84126), (474, 42063), (553, 36054), (711, 28042), (1106, 18027), (1422, 14021), (1659, 12018), (2003, 9954), (3318, 6009), (4006, 4977)]