19746016

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{691}}^1$

素因数の和:767

約数の個数: 48

約数和(自身を含む): 41852160

約数和(自身を除く): 22106144

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 76, 94, 152, 188, 304, 376, 608, 691, 752, 893, 1382, 1504, 1786, 2764, 3572, 5528, 7144, 11056, 13129, 14288, 22112, 26258, 28576, 32477, 52516, 64954, 105032, 129908, 210064, 259816, 420128, 519632, 617063, 1039264, 1234126, 2468252, 4936504, 9873008, 19746016]

約数ペア:

[(1, 19746016), (2, 9873008), (4, 4936504), (8, 2468252), (16, 1234126), (19, 1039264), (32, 617063), (38, 519632), (47, 420128), (76, 259816), (94, 210064), (152, 129908), (188, 105032), (304, 64954), (376, 52516), (608, 32477), (691, 28576), (752, 26258), (893, 22112), (1382, 14288), (1504, 13129), (1786, 11056), (2764, 7144), (3572, 5528)]