19886004

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 52695552

約数和(自身を除く): 32809548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 103, 124, 173, 186, 206, 279, 309, 346, 372, 412, 519, 558, 618, 692, 927, 1038, 1116, 1236, 1557, 1854, 2076, 3114, 3193, 3708, 5363, 6228, 6386, 9579, 10726, 12772, 16089, 17819, 19158, 21452, 28737, 32178, 35638, 38316, 48267, 53457, 57474, 64356, 71276, 96534, 106914, 114948, 160371, 193068, 213828, 320742, 552389, 641484, 1104778, 1657167, 2209556, 3314334, 4971501, 6628668, 9943002, 19886004]

約数ペア:

[(1, 19886004), (2, 9943002), (3, 6628668), (4, 4971501), (6, 3314334), (9, 2209556), (12, 1657167), (18, 1104778), (31, 641484), (36, 552389), (62, 320742), (93, 213828), (103, 193068), (124, 160371), (173, 114948), (186, 106914), (206, 96534), (279, 71276), (309, 64356), (346, 57474), (372, 53457), (412, 48267), (519, 38316), (558, 35638), (618, 32178), (692, 28737), (927, 21452), (1038, 19158), (1116, 17819), (1236, 16089), (1557, 12772), (1854, 10726), (2076, 9579), (3114, 6386), (3193, 6228), (3708, 5363)]