17958551478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{887}}^1\times {\mathrm{20959}}^1$

素因数の和:21881

約数の個数: 64

約数和(自身を含む): 42883153920

約数和(自身を除く): 24924602442

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 887, 966, 1774, 2661, 5322, 6209, 12418, 18627, 20401, 20959, 37254, 40802, 41918, 61203, 62877, 122406, 125754, 142807, 146713, 285614, 293426, 428421, 440139, 482057, 856842, 880278, 964114, 1446171, 2892342, 3374399, 6748798, 10123197, 18590633, 20246394, 37181266, 55771899, 111543798, 130134431, 260268862, 390403293, 427584559, 780806586, 855169118, 1282753677, 2565507354, 2993091913, 5986183826, 8979275739, 17958551478]

約数ペア:

[(1, 17958551478), (2, 8979275739), (3, 5986183826), (6, 2993091913), (7, 2565507354), (14, 1282753677), (21, 855169118), (23, 780806586), (42, 427584559), (46, 390403293), (69, 260268862), (138, 130134431), (161, 111543798), (322, 55771899), (483, 37181266), (887, 20246394), (966, 18590633), (1774, 10123197), (2661, 6748798), (5322, 3374399), (6209, 2892342), (12418, 1446171), (18627, 964114), (20401, 880278), (20959, 856842), (37254, 482057), (40802, 440139), (41918, 428421), (61203, 293426), (62877, 285614), (122406, 146713), (125754, 142807)]