19681974

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{53}}^1$

素因数の和:123

約数の個数: 96

約数和(自身を含む): 50168160

約数和(自身を除く): 30486186

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 39, 46, 53, 54, 69, 78, 106, 117, 138, 159, 207, 234, 299, 318, 351, 414, 477, 529, 598, 621, 689, 702, 897, 954, 1058, 1219, 1242, 1378, 1431, 1587, 1794, 2067, 2438, 2691, 2862, 3174, 3657, 4134, 4761, 5382, 6201, 6877, 7314, 8073, 9522, 10971, 12402, 13754, 14283, 15847, 16146, 18603, 20631, 21942, 28037, 28566, 31694, 32913, 37206, 41262, 47541, 56074, 61893, 65826, 84111, 95082, 123786, 142623, 168222, 185679, 252333, 285246, 364481, 371358, 427869, 504666, 728962, 756999, 855738, 1093443, 1513998, 2186886, 3280329, 6560658, 9840987, 19681974]

約数ペア:

[(1, 19681974), (2, 9840987), (3, 6560658), (6, 3280329), (9, 2186886), (13, 1513998), (18, 1093443), (23, 855738), (26, 756999), (27, 728962), (39, 504666), (46, 427869), (53, 371358), (54, 364481), (69, 285246), (78, 252333), (106, 185679), (117, 168222), (138, 142623), (159, 123786), (207, 95082), (234, 84111), (299, 65826), (318, 61893), (351, 56074), (414, 47541), (477, 41262), (529, 37206), (598, 32913), (621, 31694), (689, 28566), (702, 28037), (897, 21942), (954, 20631), (1058, 18603), (1219, 16146), (1242, 15847), (1378, 14283), (1431, 13754), (1587, 12402), (1794, 10971), (2067, 9522), (2438, 8073), (2691, 7314), (2862, 6877), (3174, 6201), (3657, 5382), (4134, 4761)]