19945002

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1877}}^1$

素因数の和:1923

約数の個数: 64

約数和(自身を含む): 51922944

約数和(自身を除く): 31977942

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 23, 33, 42, 46, 66, 69, 77, 138, 154, 161, 231, 253, 322, 462, 483, 506, 759, 966, 1518, 1771, 1877, 3542, 3754, 5313, 5631, 10626, 11262, 13139, 20647, 26278, 39417, 41294, 43171, 61941, 78834, 86342, 123882, 129513, 144529, 259026, 289058, 302197, 433587, 474881, 604394, 867174, 906591, 949762, 1424643, 1813182, 2849286, 3324167, 6648334, 9972501, 19945002]

約数ペア:

[(1, 19945002), (2, 9972501), (3, 6648334), (6, 3324167), (7, 2849286), (11, 1813182), (14, 1424643), (21, 949762), (22, 906591), (23, 867174), (33, 604394), (42, 474881), (46, 433587), (66, 302197), (69, 289058), (77, 259026), (138, 144529), (154, 129513), (161, 123882), (231, 86342), (253, 78834), (322, 61941), (462, 43171), (483, 41294), (506, 39417), (759, 26278), (966, 20647), (1518, 13139), (1771, 11262), (1877, 10626), (3542, 5631), (3754, 5313)]