1688403987

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1193}}^1$

素因数の和:1321

約数の個数: 64

約数和(自身を含む): 2723466240

約数和(自身を除く): 1035062253

約数列:

[1, 3, 9, 23, 27, 43, 53, 69, 129, 159, 207, 387, 477, 621, 989, 1161, 1193, 1219, 1431, 2279, 2967, 3579, 3657, 6837, 8901, 10737, 10971, 20511, 26703, 27439, 32211, 32913, 51299, 52417, 61533, 63229, 82317, 153897, 157251, 189687, 246951, 461691, 471753, 569061, 740853, 1179877, 1385073, 1415259, 1454267, 1707183, 2718847, 3539631, 4362801, 8156541, 10618893, 13088403, 24469623, 31856679, 39265209, 62533481, 73408869, 187600443, 562801329, 1688403987]

約数ペア:

[(1, 1688403987), (3, 562801329), (9, 187600443), (23, 73408869), (27, 62533481), (43, 39265209), (53, 31856679), (69, 24469623), (129, 13088403), (159, 10618893), (207, 8156541), (387, 4362801), (477, 3539631), (621, 2718847), (989, 1707183), (1161, 1454267), (1193, 1415259), (1219, 1385073), (1431, 1179877), (2279, 740853), (2967, 569061), (3579, 471753), (3657, 461691), (6837, 246951), (8901, 189687), (10737, 157251), (10971, 153897), (20511, 82317), (26703, 63229), (27439, 61533), (32211, 52417), (32913, 51299)]